Home / 29,326.85-40,438.94-21,787.16

Finding the Fourth Proportional to 29,326.85, 40,438.94 and 21,787.16

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Solution

The fourth proportional to 29,326.85, 40,438.94 and 21,787.16 is: 30,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,326.85 : 40,438.94 = 21,787.16 : x
  2. Step 2: Convert to fraction form
    29,326.85/40,438.94 = 21,787.16/x
  3. Step 3: Cross multiply
    29,326.85x = 40,438.94 × 21,787.16
  4. Step 4: Simplify right side
    29,326.85x = 881,049,811.58
  5. Step 5: Solve for x
    x = 881,049,811.58/29,326.85
  6. Step 6: Final answer
    x = 30,042.43

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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.