Home / 31,988.45-47,958.98-15,332.63

Finding the Fourth Proportional to 31,988.45, 47,958.98 and 15,332.63

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Solution

The fourth proportional to 31,988.45, 47,958.98 and 15,332.63 is: 22,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,988.45 : 47,958.98 = 15,332.63 : x
  2. Step 2: Convert to fraction form
    31,988.45/47,958.98 = 15,332.63/x
  3. Step 3: Cross multiply
    31,988.45x = 47,958.98 × 15,332.63
  4. Step 4: Simplify right side
    31,988.45x = 735,337,295.52
  5. Step 5: Solve for x
    x = 735,337,295.52/31,988.45
  6. Step 6: Final answer
    x = 22,987.59

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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.