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Finding the Fourth Proportional to 25,642.59, 38,460.76 and 6,921.19

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Solution

The fourth proportional to 25,642.59, 38,460.76 and 6,921.19 is: 10,380.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,642.59 : 38,460.76 = 6,921.19 : x
  2. Step 2: Convert to fraction form
    25,642.59/38,460.76 = 6,921.19/x
  3. Step 3: Cross multiply
    25,642.59x = 38,460.76 × 6,921.19
  4. Step 4: Simplify right side
    25,642.59x = 266,194,227.50
  5. Step 5: Solve for x
    x = 266,194,227.50/25,642.59
  6. Step 6: Final answer
    x = 10,380.94

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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.