Home / 20,563.64-28,349.60-13,006.20

Finding the Fourth Proportional to 20,563.64, 28,349.60 and 13,006.20

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Solution

The fourth proportional to 20,563.64, 28,349.60 and 13,006.20 is: 17,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.64 : 28,349.60 = 13,006.20 : x
  2. Step 2: Convert to fraction form
    20,563.64/28,349.60 = 13,006.20/x
  3. Step 3: Cross multiply
    20,563.64x = 28,349.60 × 13,006.20
  4. Step 4: Simplify right side
    20,563.64x = 368,720,567.52
  5. Step 5: Solve for x
    x = 368,720,567.52/20,563.64
  6. Step 6: Final answer
    x = 17,930.71

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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.