Home / 20,187.40-30,272.46-6,337.48

Finding the Fourth Proportional to 20,187.40, 30,272.46 and 6,337.48

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Solution

The fourth proportional to 20,187.40, 30,272.46 and 6,337.48 is: 9,503.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.40 : 30,272.46 = 6,337.48 : x
  2. Step 2: Convert to fraction form
    20,187.40/30,272.46 = 6,337.48/x
  3. Step 3: Cross multiply
    20,187.40x = 30,272.46 × 6,337.48
  4. Step 4: Simplify right side
    20,187.40x = 191,851,109.80
  5. Step 5: Solve for x
    x = 191,851,109.80/20,187.40
  6. Step 6: Final answer
    x = 9,503.51

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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.