Home / 22,722.68-31,349.17-13,157.34

Finding the Fourth Proportional to 22,722.68, 31,349.17 and 13,157.34

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Solution

The fourth proportional to 22,722.68, 31,349.17 and 13,157.34 is: 18,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,722.68 : 31,349.17 = 13,157.34 : x
  2. Step 2: Convert to fraction form
    22,722.68/31,349.17 = 13,157.34/x
  3. Step 3: Cross multiply
    22,722.68x = 31,349.17 × 13,157.34
  4. Step 4: Simplify right side
    22,722.68x = 412,471,688.41
  5. Step 5: Solve for x
    x = 412,471,688.41/22,722.68
  6. Step 6: Final answer
    x = 18,152.43

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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.