Home / 27,859.23-38,445.53-15,112.44

Finding the Fourth Proportional to 27,859.23, 38,445.53 and 15,112.44

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Solution

The fourth proportional to 27,859.23, 38,445.53 and 15,112.44 is: 20,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,859.23 : 38,445.53 = 15,112.44 : x
  2. Step 2: Convert to fraction form
    27,859.23/38,445.53 = 15,112.44/x
  3. Step 3: Cross multiply
    27,859.23x = 38,445.53 × 15,112.44
  4. Step 4: Simplify right side
    27,859.23x = 581,005,689.83
  5. Step 5: Solve for x
    x = 581,005,689.83/27,859.23
  6. Step 6: Final answer
    x = 20,855.05

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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.