Home / 22,487.09-31,032.21-12,415.95

Finding the Fourth Proportional to 22,487.09, 31,032.21 and 12,415.95

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Solution

The fourth proportional to 22,487.09, 31,032.21 and 12,415.95 is: 17,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.09 : 31,032.21 = 12,415.95 : x
  2. Step 2: Convert to fraction form
    22,487.09/31,032.21 = 12,415.95/x
  3. Step 3: Cross multiply
    22,487.09x = 31,032.21 × 12,415.95
  4. Step 4: Simplify right side
    22,487.09x = 385,294,414.31
  5. Step 5: Solve for x
    x = 385,294,414.31/22,487.09
  6. Step 6: Final answer
    x = 17,134.03

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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.