Home / 27,947.43-38,547.92-18,979.38

Finding the Fourth Proportional to 27,947.43, 38,547.92 and 18,979.38

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Solution

The fourth proportional to 27,947.43, 38,547.92 and 18,979.38 is: 26,178.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,947.43 : 38,547.92 = 18,979.38 : x
  2. Step 2: Convert to fraction form
    27,947.43/38,547.92 = 18,979.38/x
  3. Step 3: Cross multiply
    27,947.43x = 38,547.92 × 18,979.38
  4. Step 4: Simplify right side
    27,947.43x = 731,615,669.34
  5. Step 5: Solve for x
    x = 731,615,669.34/27,947.43
  6. Step 6: Final answer
    x = 26,178.28

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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.