Home / 22,428.91-30,727.74-21,588.13

Finding the Fourth Proportional to 22,428.91, 30,727.74 and 21,588.13

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Solution

The fourth proportional to 22,428.91, 30,727.74 and 21,588.13 is: 29,575.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428.91 : 30,727.74 = 21,588.13 : x
  2. Step 2: Convert to fraction form
    22,428.91/30,727.74 = 21,588.13/x
  3. Step 3: Cross multiply
    22,428.91x = 30,727.74 × 21,588.13
  4. Step 4: Simplify right side
    22,428.91x = 663,354,184.15
  5. Step 5: Solve for x
    x = 663,354,184.15/22,428.91
  6. Step 6: Final answer
    x = 29,575.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.