Home / 27,885.98-38,482.38-15,138.89

Finding the Fourth Proportional to 27,885.98, 38,482.38 and 15,138.89

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Solution

The fourth proportional to 27,885.98, 38,482.38 and 15,138.89 is: 20,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.98 : 38,482.38 = 15,138.89 : x
  2. Step 2: Convert to fraction form
    27,885.98/38,482.38 = 15,138.89/x
  3. Step 3: Cross multiply
    27,885.98x = 38,482.38 × 15,138.89
  4. Step 4: Simplify right side
    27,885.98x = 582,580,526.43
  5. Step 5: Solve for x
    x = 582,580,526.43/27,885.98
  6. Step 6: Final answer
    x = 20,891.52

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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.