Home / 29,327.48-40,439.80-21,787.78

Finding the Fourth Proportional to 29,327.48, 40,439.80 and 21,787.78

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Solution

The fourth proportional to 29,327.48, 40,439.80 and 21,787.78 is: 30,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,327.48 : 40,439.80 = 21,787.78 : x
  2. Step 2: Convert to fraction form
    29,327.48/40,439.80 = 21,787.78/x
  3. Step 3: Cross multiply
    29,327.48x = 40,439.80 × 21,787.78
  4. Step 4: Simplify right side
    29,327.48x = 881,093,465.64
  5. Step 5: Solve for x
    x = 881,093,465.64/29,327.48
  6. Step 6: Final answer
    x = 30,043.27

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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.