Home / 28,319.55-42,480.05-15,832.59

Finding the Fourth Proportional to 28,319.55, 42,480.05 and 15,832.59

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Solution

The fourth proportional to 28,319.55, 42,480.05 and 15,832.59 is: 23,749.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.55 : 42,480.05 = 15,832.59 : x
  2. Step 2: Convert to fraction form
    28,319.55/42,480.05 = 15,832.59/x
  3. Step 3: Cross multiply
    28,319.55x = 42,480.05 × 15,832.59
  4. Step 4: Simplify right side
    28,319.55x = 672,569,135.67
  5. Step 5: Solve for x
    x = 672,569,135.67/28,319.55
  6. Step 6: Final answer
    x = 23,749.29

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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.