Home / 38,147.55-52,646.72-21,157.12

Finding the Fourth Proportional to 38,147.55, 52,646.72 and 21,157.12

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Solution

The fourth proportional to 38,147.55, 52,646.72 and 21,157.12 is: 29,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.55 : 52,646.72 = 21,157.12 : x
  2. Step 2: Convert to fraction form
    38,147.55/52,646.72 = 21,157.12/x
  3. Step 3: Cross multiply
    38,147.55x = 52,646.72 × 21,157.12
  4. Step 4: Simplify right side
    38,147.55x = 1,113,852,972.65
  5. Step 5: Solve for x
    x = 1,113,852,972.65/38,147.55
  6. Step 6: Final answer
    x = 29,198.55

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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.