Home / 20,187.60-30,281.40-6,334.80

Finding the Fourth Proportional to 20,187.60, 30,281.40 and 6,334.80

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Solution

The fourth proportional to 20,187.60, 30,281.40 and 6,334.80 is: 9,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.60 : 30,281.40 = 6,334.80 : x
  2. Step 2: Convert to fraction form
    20,187.60/30,281.40 = 6,334.80/x
  3. Step 3: Cross multiply
    20,187.60x = 30,281.40 × 6,334.80
  4. Step 4: Simplify right side
    20,187.60x = 191,826,612.72
  5. Step 5: Solve for x
    x = 191,826,612.72/20,187.60
  6. Step 6: Final answer
    x = 9,502.20

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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.