Home / 23,211.78-32,032.36-13,142.16

Finding the Fourth Proportional to 23,211.78, 32,032.36 and 13,142.16

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Solution

The fourth proportional to 23,211.78, 32,032.36 and 13,142.16 is: 18,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,211.78 : 32,032.36 = 13,142.16 : x
  2. Step 2: Convert to fraction form
    23,211.78/32,032.36 = 13,142.16/x
  3. Step 3: Cross multiply
    23,211.78x = 32,032.36 × 13,142.16
  4. Step 4: Simplify right side
    23,211.78x = 420,974,400.30
  5. Step 5: Solve for x
    x = 420,974,400.30/23,211.78
  6. Step 6: Final answer
    x = 18,136.24

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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.