Home / 30,657.76-46,008.51-13,140.16

Finding the Fourth Proportional to 30,657.76, 46,008.51 and 13,140.16

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Solution

The fourth proportional to 30,657.76, 46,008.51 and 13,140.16 is: 19,719.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,657.76 : 46,008.51 = 13,140.16 : x
  2. Step 2: Convert to fraction form
    30,657.76/46,008.51 = 13,140.16/x
  3. Step 3: Cross multiply
    30,657.76x = 46,008.51 × 13,140.16
  4. Step 4: Simplify right side
    30,657.76x = 604,559,182.76
  5. Step 5: Solve for x
    x = 604,559,182.76/30,657.76
  6. Step 6: Final answer
    x = 19,719.61

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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.