Home / 28,086.60-38,750.76-16,145.64

Finding the Fourth Proportional to 28,086.60, 38,750.76 and 16,145.64

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Solution

The fourth proportional to 28,086.60, 38,750.76 and 16,145.64 is: 22,275.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.60 : 38,750.76 = 16,145.64 : x
  2. Step 2: Convert to fraction form
    28,086.60/38,750.76 = 16,145.64/x
  3. Step 3: Cross multiply
    28,086.60x = 38,750.76 × 16,145.64
  4. Step 4: Simplify right side
    28,086.60x = 625,655,820.69
  5. Step 5: Solve for x
    x = 625,655,820.69/28,086.60
  6. Step 6: Final answer
    x = 22,275.95

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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.