Home / 28,250.64-42,348.42-13,455.59

Finding the Fourth Proportional to 28,250.64, 42,348.42 and 13,455.59

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Solution

The fourth proportional to 28,250.64, 42,348.42 and 13,455.59 is: 20,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.64 : 42,348.42 = 13,455.59 : x
  2. Step 2: Convert to fraction form
    28,250.64/42,348.42 = 13,455.59/x
  3. Step 3: Cross multiply
    28,250.64x = 42,348.42 × 13,455.59
  4. Step 4: Simplify right side
    28,250.64x = 569,822,764.93
  5. Step 5: Solve for x
    x = 569,822,764.93/28,250.64
  6. Step 6: Final answer
    x = 20,170.26

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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.