Home / 25,176.12-34,734.40-15,612.56

Finding the Fourth Proportional to 25,176.12, 34,734.40 and 15,612.56

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Solution

The fourth proportional to 25,176.12, 34,734.40 and 15,612.56 is: 21,539.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,176.12 : 34,734.40 = 15,612.56 : x
  2. Step 2: Convert to fraction form
    25,176.12/34,734.40 = 15,612.56/x
  3. Step 3: Cross multiply
    25,176.12x = 34,734.40 × 15,612.56
  4. Step 4: Simplify right side
    25,176.12x = 542,292,904.06
  5. Step 5: Solve for x
    x = 542,292,904.06/25,176.12
  6. Step 6: Final answer
    x = 21,539.97

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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.