Home / 20,835.20-28,766.02-18,593.22

Finding the Fourth Proportional to 20,835.20, 28,766.02 and 18,593.22

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Solution

The fourth proportional to 20,835.20, 28,766.02 and 18,593.22 is: 25,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.20 : 28,766.02 = 18,593.22 : x
  2. Step 2: Convert to fraction form
    20,835.20/28,766.02 = 18,593.22/x
  3. Step 3: Cross multiply
    20,835.20x = 28,766.02 × 18,593.22
  4. Step 4: Simplify right side
    20,835.20x = 534,852,938.38
  5. Step 5: Solve for x
    x = 534,852,938.38/20,835.20
  6. Step 6: Final answer
    x = 25,670.64

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Double scale
Find fourth proportional to 20,836.20, 28,767.40 and 18,594.22
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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.