Home / 28,331.62-42,500.40-9,610.90

Finding the Fourth Proportional to 28,331.62, 42,500.40 and 9,610.90

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Solution

The fourth proportional to 28,331.62, 42,500.40 and 9,610.90 is: 14,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.62 : 42,500.40 = 9,610.90 : x
  2. Step 2: Convert to fraction form
    28,331.62/42,500.40 = 9,610.90/x
  3. Step 3: Cross multiply
    28,331.62x = 42,500.40 × 9,610.90
  4. Step 4: Simplify right side
    28,331.62x = 408,467,094.36
  5. Step 5: Solve for x
    x = 408,467,094.36/28,331.62
  6. Step 6: Final answer
    x = 14,417.36

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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.