Home / 27,875.88-38,469.78-19,937.16

Finding the Fourth Proportional to 27,875.88, 38,469.78 and 19,937.16

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Solution

The fourth proportional to 27,875.88, 38,469.78 and 19,937.16 is: 27,514.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,875.88 : 38,469.78 = 19,937.16 : x
  2. Step 2: Convert to fraction form
    27,875.88/38,469.78 = 19,937.16/x
  3. Step 3: Cross multiply
    27,875.88x = 38,469.78 × 19,937.16
  4. Step 4: Simplify right side
    27,875.88x = 766,978,159.02
  5. Step 5: Solve for x
    x = 766,978,159.02/27,875.88
  6. Step 6: Final answer
    x = 27,514.04

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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.