Home / 27,862.86-38,453.16-15,290.04

Finding the Fourth Proportional to 27,862.86, 38,453.16 and 15,290.04

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Solution

The fourth proportional to 27,862.86, 38,453.16 and 15,290.04 is: 21,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,862.86 : 38,453.16 = 15,290.04 : x
  2. Step 2: Convert to fraction form
    27,862.86/38,453.16 = 15,290.04/x
  3. Step 3: Cross multiply
    27,862.86x = 38,453.16 × 15,290.04
  4. Step 4: Simplify right side
    27,862.86x = 587,950,354.53
  5. Step 5: Solve for x
    x = 587,950,354.53/27,862.86
  6. Step 6: Final answer
    x = 21,101.58

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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.