Home / 20,564.24-30,858.60-8,877.20

Finding the Fourth Proportional to 20,564.24, 30,858.60 and 8,877.20

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Solution

The fourth proportional to 20,564.24, 30,858.60 and 8,877.20 is: 13,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.24 : 30,858.60 = 8,877.20 : x
  2. Step 2: Convert to fraction form
    20,564.24/30,858.60 = 8,877.20/x
  3. Step 3: Cross multiply
    20,564.24x = 30,858.60 × 8,877.20
  4. Step 4: Simplify right side
    20,564.24x = 273,937,963.92
  5. Step 5: Solve for x
    x = 273,937,963.92/20,564.24
  6. Step 6: Final answer
    x = 13,321.08

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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.