Home / 28,635.12-42,863.58-15,454.80

Finding the Fourth Proportional to 28,635.12, 42,863.58 and 15,454.80

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Solution

The fourth proportional to 28,635.12, 42,863.58 and 15,454.80 is: 23,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635.12 : 42,863.58 = 15,454.80 : x
  2. Step 2: Convert to fraction form
    28,635.12/42,863.58 = 15,454.80/x
  3. Step 3: Cross multiply
    28,635.12x = 42,863.58 × 15,454.80
  4. Step 4: Simplify right side
    28,635.12x = 662,448,056.18
  5. Step 5: Solve for x
    x = 662,448,056.18/28,635.12
  6. Step 6: Final answer
    x = 23,134.11

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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.