Home / 27,943.68-38,563.20-15,369.12

Finding the Fourth Proportional to 27,943.68, 38,563.20 and 15,369.12

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Solution

The fourth proportional to 27,943.68, 38,563.20 and 15,369.12 is: 21,209.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,943.68 : 38,563.20 = 15,369.12 : x
  2. Step 2: Convert to fraction form
    27,943.68/38,563.20 = 15,369.12/x
  3. Step 3: Cross multiply
    27,943.68x = 38,563.20 × 15,369.12
  4. Step 4: Simplify right side
    27,943.68x = 592,682,448.38
  5. Step 5: Solve for x
    x = 592,682,448.38/27,943.68
  6. Step 6: Final answer
    x = 21,209.89

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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.