Home / 22,985.57-31,720.20-13,432.23

Finding the Fourth Proportional to 22,985.57, 31,720.20 and 13,432.23

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Solution

The fourth proportional to 22,985.57, 31,720.20 and 13,432.23 is: 18,536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,985.57 : 31,720.20 = 13,432.23 : x
  2. Step 2: Convert to fraction form
    22,985.57/31,720.20 = 13,432.23/x
  3. Step 3: Cross multiply
    22,985.57x = 31,720.20 × 13,432.23
  4. Step 4: Simplify right side
    22,985.57x = 426,073,022.05
  5. Step 5: Solve for x
    x = 426,073,022.05/22,985.57
  6. Step 6: Final answer
    x = 18,536.54

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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.