Home / 31,461.48-47,221.42-15,890.04

Finding the Fourth Proportional to 31,461.48, 47,221.42 and 15,890.04

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Solution

The fourth proportional to 31,461.48, 47,221.42 and 15,890.04 is: 23,849.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,461.48 : 47,221.42 = 15,890.04 : x
  2. Step 2: Convert to fraction form
    31,461.48/47,221.42 = 15,890.04/x
  3. Step 3: Cross multiply
    31,461.48x = 47,221.42 × 15,890.04
  4. Step 4: Simplify right side
    31,461.48x = 750,350,252.66
  5. Step 5: Solve for x
    x = 750,350,252.66/31,461.48
  6. Step 6: Final answer
    x = 23,849.81

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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.