Home / 28,288.60-42,439.02-10,758.76

Finding the Fourth Proportional to 28,288.60, 42,439.02 and 10,758.76

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Solution

The fourth proportional to 28,288.60, 42,439.02 and 10,758.76 is: 16,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.60 : 42,439.02 = 10,758.76 : x
  2. Step 2: Convert to fraction form
    28,288.60/42,439.02 = 10,758.76/x
  3. Step 3: Cross multiply
    28,288.60x = 42,439.02 × 10,758.76
  4. Step 4: Simplify right side
    28,288.60x = 456,591,230.82
  5. Step 5: Solve for x
    x = 456,591,230.82/28,288.60
  6. Step 6: Final answer
    x = 16,140.47

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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.