Home / 31,611.91-47,444.47-15,812.20

Finding the Fourth Proportional to 31,611.91, 47,444.47 and 15,812.20

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Solution

The fourth proportional to 31,611.91, 47,444.47 and 15,812.20 is: 23,731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,611.91 : 47,444.47 = 15,812.20 : x
  2. Step 2: Convert to fraction form
    31,611.91/47,444.47 = 15,812.20/x
  3. Step 3: Cross multiply
    31,611.91x = 47,444.47 × 15,812.20
  4. Step 4: Simplify right side
    31,611.91x = 750,201,468.31
  5. Step 5: Solve for x
    x = 750,201,468.31/31,611.91
  6. Step 6: Final answer
    x = 23,731.61

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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.