Home / 27,029.88-40,534.48-12,985.90

Finding the Fourth Proportional to 27,029.88, 40,534.48 and 12,985.90

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Solution

The fourth proportional to 27,029.88, 40,534.48 and 12,985.90 is: 19,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,029.88 : 40,534.48 = 12,985.90 : x
  2. Step 2: Convert to fraction form
    27,029.88/40,534.48 = 12,985.90/x
  3. Step 3: Cross multiply
    27,029.88x = 40,534.48 × 12,985.90
  4. Step 4: Simplify right side
    27,029.88x = 526,376,703.83
  5. Step 5: Solve for x
    x = 526,376,703.83/27,029.88
  6. Step 6: Final answer
    x = 19,473.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.