Home / 25,937.61-35,788.19-15,321.75

Finding the Fourth Proportional to 25,937.61, 35,788.19 and 15,321.75

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Solution

The fourth proportional to 25,937.61, 35,788.19 and 15,321.75 is: 21,140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,937.61 : 35,788.19 = 15,321.75 : x
  2. Step 2: Convert to fraction form
    25,937.61/35,788.19 = 15,321.75/x
  3. Step 3: Cross multiply
    25,937.61x = 35,788.19 × 15,321.75
  4. Step 4: Simplify right side
    25,937.61x = 548,337,700.13
  5. Step 5: Solve for x
    x = 548,337,700.13/25,937.61
  6. Step 6: Final answer
    x = 21,140.64

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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.