Home / 28,864.28-43,216.50-15,686.84

Finding the Fourth Proportional to 28,864.28, 43,216.50 and 15,686.84

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Solution

The fourth proportional to 28,864.28, 43,216.50 and 15,686.84 is: 23,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.28 : 43,216.50 = 15,686.84 : x
  2. Step 2: Convert to fraction form
    28,864.28/43,216.50 = 15,686.84/x
  3. Step 3: Cross multiply
    28,864.28x = 43,216.50 × 15,686.84
  4. Step 4: Simplify right side
    28,864.28x = 677,930,320.86
  5. Step 5: Solve for x
    x = 677,930,320.86/28,864.28
  6. Step 6: Final answer
    x = 23,486.83

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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.