Home / 32,758.98-45,213.40-21,438.53

Finding the Fourth Proportional to 32,758.98, 45,213.40 and 21,438.53

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Solution

The fourth proportional to 32,758.98, 45,213.40 and 21,438.53 is: 29,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,758.98 : 45,213.40 = 21,438.53 : x
  2. Step 2: Convert to fraction form
    32,758.98/45,213.40 = 21,438.53/x
  3. Step 3: Cross multiply
    32,758.98x = 45,213.40 × 21,438.53
  4. Step 4: Simplify right side
    32,758.98x = 969,308,832.30
  5. Step 5: Solve for x
    x = 969,308,832.30/32,758.98
  6. Step 6: Final answer
    x = 29,589.10

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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.