Home / 23,428.38-32,331.28-12,817.98

Finding the Fourth Proportional to 23,428.38, 32,331.28 and 12,817.98

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Solution

The fourth proportional to 23,428.38, 32,331.28 and 12,817.98 is: 17,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,428.38 : 32,331.28 = 12,817.98 : x
  2. Step 2: Convert to fraction form
    23,428.38/32,331.28 = 12,817.98/x
  3. Step 3: Cross multiply
    23,428.38x = 32,331.28 × 12,817.98
  4. Step 4: Simplify right side
    23,428.38x = 414,421,700.41
  5. Step 5: Solve for x
    x = 414,421,700.41/23,428.38
  6. Step 6: Final answer
    x = 17,688.88

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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.