Home / 25,008.66-34,511.76-13,678.11

Finding the Fourth Proportional to 25,008.66, 34,511.76 and 13,678.11

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Solution

The fourth proportional to 25,008.66, 34,511.76 and 13,678.11 is: 18,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,008.66 : 34,511.76 = 13,678.11 : x
  2. Step 2: Convert to fraction form
    25,008.66/34,511.76 = 13,678.11/x
  3. Step 3: Cross multiply
    25,008.66x = 34,511.76 × 13,678.11
  4. Step 4: Simplify right side
    25,008.66x = 472,055,649.57
  5. Step 5: Solve for x
    x = 472,055,649.57/25,008.66
  6. Step 6: Final answer
    x = 18,875.69

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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.