Home / 28,512.56-39,348.60-15,937.32

Finding the Fourth Proportional to 28,512.56, 39,348.60 and 15,937.32

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Solution

The fourth proportional to 28,512.56, 39,348.60 and 15,937.32 is: 21,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.56 : 39,348.60 = 15,937.32 : x
  2. Step 2: Convert to fraction form
    28,512.56/39,348.60 = 15,937.32/x
  3. Step 3: Cross multiply
    28,512.56x = 39,348.60 × 15,937.32
  4. Step 4: Simplify right side
    28,512.56x = 627,111,229.75
  5. Step 5: Solve for x
    x = 627,111,229.75/28,512.56
  6. Step 6: Final answer
    x = 21,994.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.