Home / 31,778.94-47,637.39-15,134.46

Finding the Fourth Proportional to 31,778.94, 47,637.39 and 15,134.46

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Solution

The fourth proportional to 31,778.94, 47,637.39 and 15,134.46 is: 22,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.94 : 47,637.39 = 15,134.46 : x
  2. Step 2: Convert to fraction form
    31,778.94/47,637.39 = 15,134.46/x
  3. Step 3: Cross multiply
    31,778.94x = 47,637.39 × 15,134.46
  4. Step 4: Simplify right side
    31,778.94x = 720,966,173.46
  5. Step 5: Solve for x
    x = 720,966,173.46/31,778.94
  6. Step 6: Final answer
    x = 22,686.92

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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.