Home / 30,720.47-46,085.56-10,998.59

Finding the Fourth Proportional to 30,720.47, 46,085.56 and 10,998.59

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Solution

The fourth proportional to 30,720.47, 46,085.56 and 10,998.59 is: 16,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.47 : 46,085.56 = 10,998.59 : x
  2. Step 2: Convert to fraction form
    30,720.47/46,085.56 = 10,998.59/x
  3. Step 3: Cross multiply
    30,720.47x = 46,085.56 × 10,998.59
  4. Step 4: Simplify right side
    30,720.47x = 506,875,921.44
  5. Step 5: Solve for x
    x = 506,875,921.44/30,720.47
  6. Step 6: Final answer
    x = 16,499.62

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.