Home / 28,139.60-38,836.86-17,532.66

Finding the Fourth Proportional to 28,139.60, 38,836.86 and 17,532.66

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Solution

The fourth proportional to 28,139.60, 38,836.86 and 17,532.66 is: 24,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.60 : 38,836.86 = 17,532.66 : x
  2. Step 2: Convert to fraction form
    28,139.60/38,836.86 = 17,532.66/x
  3. Step 3: Cross multiply
    28,139.60x = 38,836.86 × 17,532.66
  4. Step 4: Simplify right side
    28,139.60x = 680,913,461.85
  5. Step 5: Solve for x
    x = 680,913,461.85/28,139.60
  6. Step 6: Final answer
    x = 24,197.70

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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.