Home / 27,854.32-38,439.26-15,107.52

Finding the Fourth Proportional to 27,854.32, 38,439.26 and 15,107.52

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Solution

The fourth proportional to 27,854.32, 38,439.26 and 15,107.52 is: 20,848.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,854.32 : 38,439.26 = 15,107.52 : x
  2. Step 2: Convert to fraction form
    27,854.32/38,439.26 = 15,107.52/x
  3. Step 3: Cross multiply
    27,854.32x = 38,439.26 × 15,107.52
  4. Step 4: Simplify right side
    27,854.32x = 580,721,669.55
  5. Step 5: Solve for x
    x = 580,721,669.55/27,854.32
  6. Step 6: Final answer
    x = 20,848.53

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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.