Home / 27,900.95-41,851.43-12,315.47

Finding the Fourth Proportional to 27,900.95, 41,851.43 and 12,315.47

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Solution

The fourth proportional to 27,900.95, 41,851.43 and 12,315.47 is: 18,473.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,900.95 : 41,851.43 = 12,315.47 : x
  2. Step 2: Convert to fraction form
    27,900.95/41,851.43 = 12,315.47/x
  3. Step 3: Cross multiply
    27,900.95x = 41,851.43 × 12,315.47
  4. Step 4: Simplify right side
    27,900.95x = 515,420,036.75
  5. Step 5: Solve for x
    x = 515,420,036.75/27,900.95
  6. Step 6: Final answer
    x = 18,473.21

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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.