Home / 31,486.30-47,237.64-13,951.96

Finding the Fourth Proportional to 31,486.30, 47,237.64 and 13,951.96

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Solution

The fourth proportional to 31,486.30, 47,237.64 and 13,951.96 is: 20,931.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,486.30 : 47,237.64 = 13,951.96 : x
  2. Step 2: Convert to fraction form
    31,486.30/47,237.64 = 13,951.96/x
  3. Step 3: Cross multiply
    31,486.30x = 47,237.64 × 13,951.96
  4. Step 4: Simplify right side
    31,486.30x = 659,057,663.77
  5. Step 5: Solve for x
    x = 659,057,663.77/31,486.30
  6. Step 6: Final answer
    x = 20,931.57

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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.