Home / 22,890.14-31,586.28-13,331.12

Finding the Fourth Proportional to 22,890.14, 31,586.28 and 13,331.12

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Solution

The fourth proportional to 22,890.14, 31,586.28 and 13,331.12 is: 18,395.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,890.14 : 31,586.28 = 13,331.12 : x
  2. Step 2: Convert to fraction form
    22,890.14/31,586.28 = 13,331.12/x
  3. Step 3: Cross multiply
    22,890.14x = 31,586.28 × 13,331.12
  4. Step 4: Simplify right side
    22,890.14x = 421,080,489.03
  5. Step 5: Solve for x
    x = 421,080,489.03/22,890.14
  6. Step 6: Final answer
    x = 18,395.71

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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.