Home / 27,856.73-38,444.92-15,917.75

Finding the Fourth Proportional to 27,856.73, 38,444.92 and 15,917.75

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Solution

The fourth proportional to 27,856.73, 38,444.92 and 15,917.75 is: 21,968.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,856.73 : 38,444.92 = 15,917.75 : x
  2. Step 2: Convert to fraction form
    27,856.73/38,444.92 = 15,917.75/x
  3. Step 3: Cross multiply
    27,856.73x = 38,444.92 × 15,917.75
  4. Step 4: Simplify right side
    27,856.73x = 611,956,545.74
  5. Step 5: Solve for x
    x = 611,956,545.74/27,856.73
  6. Step 6: Final answer
    x = 21,968.00

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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.