Home / 42,476.04-63,724.87-12,491.34

Finding the Fourth Proportional to 42,476.04, 63,724.87 and 12,491.34

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Solution

The fourth proportional to 42,476.04, 63,724.87 and 12,491.34 is: 18,740.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,476.04 : 63,724.87 = 12,491.34 : x
  2. Step 2: Convert to fraction form
    42,476.04/63,724.87 = 12,491.34/x
  3. Step 3: Cross multiply
    42,476.04x = 63,724.87 × 12,491.34
  4. Step 4: Simplify right side
    42,476.04x = 796,008,754.21
  5. Step 5: Solve for x
    x = 796,008,754.21/42,476.04
  6. Step 6: Final answer
    x = 18,740.18

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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.