Home / 31,491.07-47,248.11-14,631.86

Finding the Fourth Proportional to 31,491.07, 47,248.11 and 14,631.86

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Solution

The fourth proportional to 31,491.07, 47,248.11 and 14,631.86 is: 21,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.07 : 47,248.11 = 14,631.86 : x
  2. Step 2: Convert to fraction form
    31,491.07/47,248.11 = 14,631.86/x
  3. Step 3: Cross multiply
    31,491.07x = 47,248.11 × 14,631.86
  4. Step 4: Simplify right side
    31,491.07x = 691,327,848.90
  5. Step 5: Solve for x
    x = 691,327,848.90/31,491.07
  6. Step 6: Final answer
    x = 21,953.14

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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.