Home / 15,438.42-23,157.59-5,577.68

Finding the Fourth Proportional to 15,438.42, 23,157.59 and 5,577.68

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Solution

The fourth proportional to 15,438.42, 23,157.59 and 5,577.68 is: 8,366.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.42 : 23,157.59 = 5,577.68 : x
  2. Step 2: Convert to fraction form
    15,438.42/23,157.59 = 5,577.68/x
  3. Step 3: Cross multiply
    15,438.42x = 23,157.59 × 5,577.68
  4. Step 4: Simplify right side
    15,438.42x = 129,165,656.60
  5. Step 5: Solve for x
    x = 129,165,656.60/15,438.42
  6. Step 6: Final answer
    x = 8,366.51

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.