Home / 23,255.40-32,132.16-20,715.24

Finding the Fourth Proportional to 23,255.40, 32,132.16 and 20,715.24

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Solution

The fourth proportional to 23,255.40, 32,132.16 and 20,715.24 is: 28,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,255.40 : 32,132.16 = 20,715.24 : x
  2. Step 2: Convert to fraction form
    23,255.40/32,132.16 = 20,715.24/x
  3. Step 3: Cross multiply
    23,255.40x = 32,132.16 × 20,715.24
  4. Step 4: Simplify right side
    23,255.40x = 665,625,406.12
  5. Step 5: Solve for x
    x = 665,625,406.12/23,255.40
  6. Step 6: Final answer
    x = 28,622.40

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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.