Home / 23,181.12-31,956.36-15,209.52

Finding the Fourth Proportional to 23,181.12, 31,956.36 and 15,209.52

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Solution

The fourth proportional to 23,181.12, 31,956.36 and 15,209.52 is: 20,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,181.12 : 31,956.36 = 15,209.52 : x
  2. Step 2: Convert to fraction form
    23,181.12/31,956.36 = 15,209.52/x
  3. Step 3: Cross multiply
    23,181.12x = 31,956.36 × 15,209.52
  4. Step 4: Simplify right side
    23,181.12x = 486,040,896.55
  5. Step 5: Solve for x
    x = 486,040,896.55/23,181.12
  6. Step 6: Final answer
    x = 20,967.10

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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.