Home / 20,530.60-30,776.70-16,085.80

Finding the Fourth Proportional to 20,530.60, 30,776.70 and 16,085.80

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Solution

The fourth proportional to 20,530.60, 30,776.70 and 16,085.80 is: 24,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.60 : 30,776.70 = 16,085.80 : x
  2. Step 2: Convert to fraction form
    20,530.60/30,776.70 = 16,085.80/x
  3. Step 3: Cross multiply
    20,530.60x = 30,776.70 × 16,085.80
  4. Step 4: Simplify right side
    20,530.60x = 495,067,840.86
  5. Step 5: Solve for x
    x = 495,067,840.86/20,530.60
  6. Step 6: Final answer
    x = 24,113.66

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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.