Home / 25,386.78-38,104.78-12,248.38

Finding the Fourth Proportional to 25,386.78, 38,104.78 and 12,248.38

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Solution

The fourth proportional to 25,386.78, 38,104.78 and 12,248.38 is: 18,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386.78 : 38,104.78 = 12,248.38 : x
  2. Step 2: Convert to fraction form
    25,386.78/38,104.78 = 12,248.38/x
  3. Step 3: Cross multiply
    25,386.78x = 38,104.78 × 12,248.38
  4. Step 4: Simplify right side
    25,386.78x = 466,721,825.26
  5. Step 5: Solve for x
    x = 466,721,825.26/25,386.78
  6. Step 6: Final answer
    x = 18,384.44

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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.