Home / 28,246.96-38,983.28-15,502.61

Finding the Fourth Proportional to 28,246.96, 38,983.28 and 15,502.61

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Solution

The fourth proportional to 28,246.96, 38,983.28 and 15,502.61 is: 21,394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.96 : 38,983.28 = 15,502.61 : x
  2. Step 2: Convert to fraction form
    28,246.96/38,983.28 = 15,502.61/x
  3. Step 3: Cross multiply
    28,246.96x = 38,983.28 × 15,502.61
  4. Step 4: Simplify right side
    28,246.96x = 604,342,332.20
  5. Step 5: Solve for x
    x = 604,342,332.20/28,246.96
  6. Step 6: Final answer
    x = 21,394.95

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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.