Home / 20,363.60-30,521.10-10,497.80

Finding the Fourth Proportional to 20,363.60, 30,521.10 and 10,497.80

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Solution

The fourth proportional to 20,363.60, 30,521.10 and 10,497.80 is: 15,734.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.60 : 30,521.10 = 10,497.80 : x
  2. Step 2: Convert to fraction form
    20,363.60/30,521.10 = 10,497.80/x
  3. Step 3: Cross multiply
    20,363.60x = 30,521.10 × 10,497.80
  4. Step 4: Simplify right side
    20,363.60x = 320,404,403.58
  5. Step 5: Solve for x
    x = 320,404,403.58/20,363.60
  6. Step 6: Final answer
    x = 15,734.17

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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.