Home / 20,487.48-28,264.14-12,527.16

Finding the Fourth Proportional to 20,487.48, 28,264.14 and 12,527.16

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Solution

The fourth proportional to 20,487.48, 28,264.14 and 12,527.16 is: 17,282.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487.48 : 28,264.14 = 12,527.16 : x
  2. Step 2: Convert to fraction form
    20,487.48/28,264.14 = 12,527.16/x
  3. Step 3: Cross multiply
    20,487.48x = 28,264.14 × 12,527.16
  4. Step 4: Simplify right side
    20,487.48x = 354,069,404.04
  5. Step 5: Solve for x
    x = 354,069,404.04/20,487.48
  6. Step 6: Final answer
    x = 17,282.23

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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.