Home / 27,892.07-38,507.15-21,165.93

Finding the Fourth Proportional to 27,892.07, 38,507.15 and 21,165.93

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Solution

The fourth proportional to 27,892.07, 38,507.15 and 21,165.93 is: 29,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,892.07 : 38,507.15 = 21,165.93 : x
  2. Step 2: Convert to fraction form
    27,892.07/38,507.15 = 21,165.93/x
  3. Step 3: Cross multiply
    27,892.07x = 38,507.15 × 21,165.93
  4. Step 4: Simplify right side
    27,892.07x = 815,039,535.57
  5. Step 5: Solve for x
    x = 815,039,535.57/27,892.07
  6. Step 6: Final answer
    x = 29,221.20

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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.