Home / 27,856.16-38,444.13-15,917.19

Finding the Fourth Proportional to 27,856.16, 38,444.13 and 15,917.19

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Solution

The fourth proportional to 27,856.16, 38,444.13 and 15,917.19 is: 21,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,856.16 : 38,444.13 = 15,917.19 : x
  2. Step 2: Convert to fraction form
    27,856.16/38,444.13 = 15,917.19/x
  3. Step 3: Cross multiply
    27,856.16x = 38,444.13 × 15,917.19
  4. Step 4: Simplify right side
    27,856.16x = 611,922,521.59
  5. Step 5: Solve for x
    x = 611,922,521.59/27,856.16
  6. Step 6: Final answer
    x = 21,967.22

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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.