Home / 42,576.84-63,860.40-11,409.66

Finding the Fourth Proportional to 42,576.84, 63,860.40 and 11,409.66

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Solution

The fourth proportional to 42,576.84, 63,860.40 and 11,409.66 is: 17,113.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,576.84 : 63,860.40 = 11,409.66 : x
  2. Step 2: Convert to fraction form
    42,576.84/63,860.40 = 11,409.66/x
  3. Step 3: Cross multiply
    42,576.84x = 63,860.40 × 11,409.66
  4. Step 4: Simplify right side
    42,576.84x = 728,625,451.46
  5. Step 5: Solve for x
    x = 728,625,451.46/42,576.84
  6. Step 6: Final answer
    x = 17,113.19

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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.