Home / 27,945.92-38,585.12-18,534.08

Finding the Fourth Proportional to 27,945.92, 38,585.12 and 18,534.08

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Solution

The fourth proportional to 27,945.92, 38,585.12 and 18,534.08 is: 25,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.92 : 38,585.12 = 18,534.08 : x
  2. Step 2: Convert to fraction form
    27,945.92/38,585.12 = 18,534.08/x
  3. Step 3: Cross multiply
    27,945.92x = 38,585.12 × 18,534.08
  4. Step 4: Simplify right side
    27,945.92x = 715,139,700.89
  5. Step 5: Solve for x
    x = 715,139,700.89/27,945.92
  6. Step 6: Final answer
    x = 25,590.13

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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.