Home / 27,854.26-38,439.06-15,107.50

Finding the Fourth Proportional to 27,854.26, 38,439.06 and 15,107.50

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Solution

The fourth proportional to 27,854.26, 38,439.06 and 15,107.50 is: 20,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,854.26 : 38,439.06 = 15,107.50 : x
  2. Step 2: Convert to fraction form
    27,854.26/38,439.06 = 15,107.50/x
  3. Step 3: Cross multiply
    27,854.26x = 38,439.06 × 15,107.50
  4. Step 4: Simplify right side
    27,854.26x = 580,718,098.95
  5. Step 5: Solve for x
    x = 580,718,098.95/27,854.26
  6. Step 6: Final answer
    x = 20,848.45

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1.5x scale

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.