Home / 27,064.90-40,603.51-12,278.05

Finding the Fourth Proportional to 27,064.90, 40,603.51 and 12,278.05

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Solution

The fourth proportional to 27,064.90, 40,603.51 and 12,278.05 is: 18,419.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,064.90 : 40,603.51 = 12,278.05 : x
  2. Step 2: Convert to fraction form
    27,064.90/40,603.51 = 12,278.05/x
  3. Step 3: Cross multiply
    27,064.90x = 40,603.51 × 12,278.05
  4. Step 4: Simplify right side
    27,064.90x = 498,531,839.79
  5. Step 5: Solve for x
    x = 498,531,839.79/27,064.90
  6. Step 6: Final answer
    x = 18,419.87

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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.