Home / 27,585.54-38,027.24-21,528.92

Finding the Fourth Proportional to 27,585.54, 38,027.24 and 21,528.92

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Solution

The fourth proportional to 27,585.54, 38,027.24 and 21,528.92 is: 29,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,585.54 : 38,027.24 = 21,528.92 : x
  2. Step 2: Convert to fraction form
    27,585.54/38,027.24 = 21,528.92/x
  3. Step 3: Cross multiply
    27,585.54x = 38,027.24 × 21,528.92
  4. Step 4: Simplify right side
    27,585.54x = 818,685,407.78
  5. Step 5: Solve for x
    x = 818,685,407.78/27,585.54
  6. Step 6: Final answer
    x = 29,678.06

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Double scale
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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.