Home / 31,820.99-47,731.61-10,761.19

Finding the Fourth Proportional to 31,820.99, 47,731.61 and 10,761.19

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Solution

The fourth proportional to 31,820.99, 47,731.61 and 10,761.19 is: 16,141.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.99 : 47,731.61 = 10,761.19 : x
  2. Step 2: Convert to fraction form
    31,820.99/47,731.61 = 10,761.19/x
  3. Step 3: Cross multiply
    31,820.99x = 47,731.61 × 10,761.19
  4. Step 4: Simplify right side
    31,820.99x = 513,648,831.79
  5. Step 5: Solve for x
    x = 513,648,831.79/31,820.99
  6. Step 6: Final answer
    x = 16,141.83

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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.