Home / 27,938.13-38,554.15-15,191.64

Finding the Fourth Proportional to 27,938.13, 38,554.15 and 15,191.64

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Solution

The fourth proportional to 27,938.13, 38,554.15 and 15,191.64 is: 20,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.13 : 38,554.15 = 15,191.64 : x
  2. Step 2: Convert to fraction form
    27,938.13/38,554.15 = 15,191.64/x
  3. Step 3: Cross multiply
    27,938.13x = 38,554.15 × 15,191.64
  4. Step 4: Simplify right side
    27,938.13x = 585,700,767.31
  5. Step 5: Solve for x
    x = 585,700,767.31/27,938.13
  6. Step 6: Final answer
    x = 20,964.21

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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.