Home / 31,440.30-47,160.45-10,663.98

Finding the Fourth Proportional to 31,440.30, 47,160.45 and 10,663.98

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Solution

The fourth proportional to 31,440.30, 47,160.45 and 10,663.98 is: 15,995.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.30 : 47,160.45 = 10,663.98 : x
  2. Step 2: Convert to fraction form
    31,440.30/47,160.45 = 10,663.98/x
  3. Step 3: Cross multiply
    31,440.30x = 47,160.45 × 10,663.98
  4. Step 4: Simplify right side
    31,440.30x = 502,918,095.59
  5. Step 5: Solve for x
    x = 502,918,095.59/31,440.30
  6. Step 6: Final answer
    x = 15,995.97

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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.