Home / 36,208.08-54,312.20-15,431.58

Finding the Fourth Proportional to 36,208.08, 54,312.20 and 15,431.58

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Solution

The fourth proportional to 36,208.08, 54,312.20 and 15,431.58 is: 23,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,208.08 : 54,312.20 = 15,431.58 : x
  2. Step 2: Convert to fraction form
    36,208.08/54,312.20 = 15,431.58/x
  3. Step 3: Cross multiply
    36,208.08x = 54,312.20 × 15,431.58
  4. Step 4: Simplify right side
    36,208.08x = 838,122,982.12
  5. Step 5: Solve for x
    x = 838,122,982.12/36,208.08
  6. Step 6: Final answer
    x = 23,147.40

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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.