Home / 30,149.54-41,603.64-16,720.76

Finding the Fourth Proportional to 30,149.54, 41,603.64 and 16,720.76

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Solution

The fourth proportional to 30,149.54, 41,603.64 and 16,720.76 is: 23,073.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.54 : 41,603.64 = 16,720.76 : x
  2. Step 2: Convert to fraction form
    30,149.54/41,603.64 = 16,720.76/x
  3. Step 3: Cross multiply
    30,149.54x = 41,603.64 × 16,720.76
  4. Step 4: Simplify right side
    30,149.54x = 695,644,271.55
  5. Step 5: Solve for x
    x = 695,644,271.55/30,149.54
  6. Step 6: Final answer
    x = 23,073.13

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.