Home / 42,747.92-64,121.88-11,583.17

Finding the Fourth Proportional to 42,747.92, 64,121.88 and 11,583.17

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Solution

The fourth proportional to 42,747.92, 64,121.88 and 11,583.17 is: 17,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,747.92 : 64,121.88 = 11,583.17 : x
  2. Step 2: Convert to fraction form
    42,747.92/64,121.88 = 11,583.17/x
  3. Step 3: Cross multiply
    42,747.92x = 64,121.88 × 11,583.17
  4. Step 4: Simplify right side
    42,747.92x = 742,734,636.76
  5. Step 5: Solve for x
    x = 742,734,636.76/42,747.92
  6. Step 6: Final answer
    x = 17,374.76

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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.