Home / 22,693.68-31,312.80-13,742.02

Finding the Fourth Proportional to 22,693.68, 31,312.80 and 13,742.02

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Solution

The fourth proportional to 22,693.68, 31,312.80 and 13,742.02 is: 18,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,693.68 : 31,312.80 = 13,742.02 : x
  2. Step 2: Convert to fraction form
    22,693.68/31,312.80 = 13,742.02/x
  3. Step 3: Cross multiply
    22,693.68x = 31,312.80 × 13,742.02
  4. Step 4: Simplify right side
    22,693.68x = 430,301,123.86
  5. Step 5: Solve for x
    x = 430,301,123.86/22,693.68
  6. Step 6: Final answer
    x = 18,961.28

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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.