Home / 27,938.65-38,555.13-15,191.84

Finding the Fourth Proportional to 27,938.65, 38,555.13 and 15,191.84

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Solution

The fourth proportional to 27,938.65, 38,555.13 and 15,191.84 is: 20,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.65 : 38,555.13 = 15,191.84 : x
  2. Step 2: Convert to fraction form
    27,938.65/38,555.13 = 15,191.84/x
  3. Step 3: Cross multiply
    27,938.65x = 38,555.13 × 15,191.84
  4. Step 4: Simplify right side
    27,938.65x = 585,723,097.40
  5. Step 5: Solve for x
    x = 585,723,097.40/27,938.65
  6. Step 6: Final answer
    x = 20,964.62

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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.