Home / 31,814.16-47,721.28-12,088.08

Finding the Fourth Proportional to 31,814.16, 47,721.28 and 12,088.08

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Solution

The fourth proportional to 31,814.16, 47,721.28 and 12,088.08 is: 18,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.16 : 47,721.28 = 12,088.08 : x
  2. Step 2: Convert to fraction form
    31,814.16/47,721.28 = 12,088.08/x
  3. Step 3: Cross multiply
    31,814.16x = 47,721.28 × 12,088.08
  4. Step 4: Simplify right side
    31,814.16x = 576,858,650.34
  5. Step 5: Solve for x
    x = 576,858,650.34/31,814.16
  6. Step 6: Final answer
    x = 18,132.14

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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.