Home / 25,386.28-38,036.08-17,978.43

Finding the Fourth Proportional to 25,386.28, 38,036.08 and 17,978.43

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Solution

The fourth proportional to 25,386.28, 38,036.08 and 17,978.43 is: 26,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386.28 : 38,036.08 = 17,978.43 : x
  2. Step 2: Convert to fraction form
    25,386.28/38,036.08 = 17,978.43/x
  3. Step 3: Cross multiply
    25,386.28x = 38,036.08 × 17,978.43
  4. Step 4: Simplify right side
    25,386.28x = 683,829,001.75
  5. Step 5: Solve for x
    x = 683,829,001.75/25,386.28
  6. Step 6: Final answer
    x = 26,936.95

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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.