Home / 20,766.60-31,085.10-16,360.20

Finding the Fourth Proportional to 20,766.60, 31,085.10 and 16,360.20

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Solution

The fourth proportional to 20,766.60, 31,085.10 and 16,360.20 is: 24,489.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.60 : 31,085.10 = 16,360.20 : x
  2. Step 2: Convert to fraction form
    20,766.60/31,085.10 = 16,360.20/x
  3. Step 3: Cross multiply
    20,766.60x = 31,085.10 × 16,360.20
  4. Step 4: Simplify right side
    20,766.60x = 508,558,453.02
  5. Step 5: Solve for x
    x = 508,558,453.02/20,766.60
  6. Step 6: Final answer
    x = 24,489.25

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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.