Home / 31,501.98-47,282.25-15,930.78

Finding the Fourth Proportional to 31,501.98, 47,282.25 and 15,930.78

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Solution

The fourth proportional to 31,501.98, 47,282.25 and 15,930.78 is: 23,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501.98 : 47,282.25 = 15,930.78 : x
  2. Step 2: Convert to fraction form
    31,501.98/47,282.25 = 15,930.78/x
  3. Step 3: Cross multiply
    31,501.98x = 47,282.25 × 15,930.78
  4. Step 4: Simplify right side
    31,501.98x = 753,243,122.66
  5. Step 5: Solve for x
    x = 753,243,122.66/31,501.98
  6. Step 6: Final answer
    x = 23,910.98

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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.