Home / 22,715.13-31,347.06-12,644.01

Finding the Fourth Proportional to 22,715.13, 31,347.06 and 12,644.01

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Solution

The fourth proportional to 22,715.13, 31,347.06 and 12,644.01 is: 17,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.13 : 31,347.06 = 12,644.01 : x
  2. Step 2: Convert to fraction form
    22,715.13/31,347.06 = 12,644.01/x
  3. Step 3: Cross multiply
    22,715.13x = 31,347.06 × 12,644.01
  4. Step 4: Simplify right side
    22,715.13x = 396,352,540.11
  5. Step 5: Solve for x
    x = 396,352,540.11/22,715.13
  6. Step 6: Final answer
    x = 17,448.83

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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.