Home / 31,385.81-47,085.66-10,332.34

Finding the Fourth Proportional to 31,385.81, 47,085.66 and 10,332.34

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Solution

The fourth proportional to 31,385.81, 47,085.66 and 10,332.34 is: 15,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.81 : 47,085.66 = 10,332.34 : x
  2. Step 2: Convert to fraction form
    31,385.81/47,085.66 = 10,332.34/x
  3. Step 3: Cross multiply
    31,385.81x = 47,085.66 × 10,332.34
  4. Step 4: Simplify right side
    31,385.81x = 486,504,930.53
  5. Step 5: Solve for x
    x = 486,504,930.53/31,385.81
  6. Step 6: Final answer
    x = 15,500.79

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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.