Home / 32,787.70-45,265.68-21,642.10

Finding the Fourth Proportional to 32,787.70, 45,265.68 and 21,642.10

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Solution

The fourth proportional to 32,787.70, 45,265.68 and 21,642.10 is: 29,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,787.70 : 45,265.68 = 21,642.10 : x
  2. Step 2: Convert to fraction form
    32,787.70/45,265.68 = 21,642.10/x
  3. Step 3: Cross multiply
    32,787.70x = 45,265.68 × 21,642.10
  4. Step 4: Simplify right side
    32,787.70x = 979,644,259.96
  5. Step 5: Solve for x
    x = 979,644,259.96/32,787.70
  6. Step 6: Final answer
    x = 29,878.41

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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.