Home / 31,527.60-43,510.14-18,103.20

Finding the Fourth Proportional to 31,527.60, 43,510.14 and 18,103.20

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Solution

The fourth proportional to 31,527.60, 43,510.14 and 18,103.20 is: 24,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,527.60 : 43,510.14 = 18,103.20 : x
  2. Step 2: Convert to fraction form
    31,527.60/43,510.14 = 18,103.20/x
  3. Step 3: Cross multiply
    31,527.60x = 43,510.14 × 18,103.20
  4. Step 4: Simplify right side
    31,527.60x = 787,672,766.45
  5. Step 5: Solve for x
    x = 787,672,766.45/31,527.60
  6. Step 6: Final answer
    x = 24,983.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.