Home / 31,479.48-47,206.92-12,754.68

Finding the Fourth Proportional to 31,479.48, 47,206.92 and 12,754.68

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Solution

The fourth proportional to 31,479.48, 47,206.92 and 12,754.68 is: 19,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,479.48 : 47,206.92 = 12,754.68 : x
  2. Step 2: Convert to fraction form
    31,479.48/47,206.92 = 12,754.68/x
  3. Step 3: Cross multiply
    31,479.48x = 47,206.92 × 12,754.68
  4. Step 4: Simplify right side
    31,479.48x = 602,109,158.39
  5. Step 5: Solve for x
    x = 602,109,158.39/31,479.48
  6. Step 6: Final answer
    x = 19,127.04

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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.