Home / 21,618.57-32,428.82-6,624.61

Finding the Fourth Proportional to 21,618.57, 32,428.82 and 6,624.61

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Solution

The fourth proportional to 21,618.57, 32,428.82 and 6,624.61 is: 9,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.57 : 32,428.82 = 6,624.61 : x
  2. Step 2: Convert to fraction form
    21,618.57/32,428.82 = 6,624.61/x
  3. Step 3: Cross multiply
    21,618.57x = 32,428.82 × 6,624.61
  4. Step 4: Simplify right side
    21,618.57x = 214,828,123.12
  5. Step 5: Solve for x
    x = 214,828,123.12/21,618.57
  6. Step 6: Final answer
    x = 9,937.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.