Home / 27,948.36-38,536.48-22,278.72

Finding the Fourth Proportional to 27,948.36, 38,536.48 and 22,278.72

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Solution

The fourth proportional to 27,948.36, 38,536.48 and 22,278.72 is: 30,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,948.36 : 38,536.48 = 22,278.72 : x
  2. Step 2: Convert to fraction form
    27,948.36/38,536.48 = 22,278.72/x
  3. Step 3: Cross multiply
    27,948.36x = 38,536.48 × 22,278.72
  4. Step 4: Simplify right side
    27,948.36x = 858,543,447.71
  5. Step 5: Solve for x
    x = 858,543,447.71/27,948.36
  6. Step 6: Final answer
    x = 30,718.92

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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.