Home / 23,428.67-32,331.60-12,818.30

Finding the Fourth Proportional to 23,428.67, 32,331.60 and 12,818.30

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Solution

The fourth proportional to 23,428.67, 32,331.60 and 12,818.30 is: 17,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,428.67 : 32,331.60 = 12,818.30 : x
  2. Step 2: Convert to fraction form
    23,428.67/32,331.60 = 12,818.30/x
  3. Step 3: Cross multiply
    23,428.67x = 32,331.60 × 12,818.30
  4. Step 4: Simplify right side
    23,428.67x = 414,436,148.28
  5. Step 5: Solve for x
    x = 414,436,148.28/23,428.67
  6. Step 6: Final answer
    x = 17,689.27

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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.