Home / 15,399.77-22,988.25-13,531.42

Finding the Fourth Proportional to 15,399.77, 22,988.25 and 13,531.42

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Solution

The fourth proportional to 15,399.77, 22,988.25 and 13,531.42 is: 20,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,399.77 : 22,988.25 = 13,531.42 : x
  2. Step 2: Convert to fraction form
    15,399.77/22,988.25 = 13,531.42/x
  3. Step 3: Cross multiply
    15,399.77x = 22,988.25 × 13,531.42
  4. Step 4: Simplify right side
    15,399.77x = 311,063,694.55
  5. Step 5: Solve for x
    x = 311,063,694.55/15,399.77
  6. Step 6: Final answer
    x = 20,199.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.