Home / 27,909.24-38,515.98-15,334.44

Finding the Fourth Proportional to 27,909.24, 38,515.98 and 15,334.44

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Solution

The fourth proportional to 27,909.24, 38,515.98 and 15,334.44 is: 21,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.24 : 38,515.98 = 15,334.44 : x
  2. Step 2: Convert to fraction form
    27,909.24/38,515.98 = 15,334.44/x
  3. Step 3: Cross multiply
    27,909.24x = 38,515.98 × 15,334.44
  4. Step 4: Simplify right side
    27,909.24x = 590,620,984.35
  5. Step 5: Solve for x
    x = 590,620,984.35/27,909.24
  6. Step 6: Final answer
    x = 21,162.20

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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.