Home / 25,409.31-38,120.02-8,769.49

Finding the Fourth Proportional to 25,409.31, 38,120.02 and 8,769.49

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Solution

The fourth proportional to 25,409.31, 38,120.02 and 8,769.49 is: 13,156.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,409.31 : 38,120.02 = 8,769.49 : x
  2. Step 2: Convert to fraction form
    25,409.31/38,120.02 = 8,769.49/x
  3. Step 3: Cross multiply
    25,409.31x = 38,120.02 × 8,769.49
  4. Step 4: Simplify right side
    25,409.31x = 334,292,921.67
  5. Step 5: Solve for x
    x = 334,292,921.67/25,409.31
  6. Step 6: Final answer
    x = 13,156.32

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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.