Home / 37,905.22-52,307.88-20,909.80

Finding the Fourth Proportional to 37,905.22, 52,307.88 and 20,909.80

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Solution

The fourth proportional to 37,905.22, 52,307.88 and 20,909.80 is: 28,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,905.22 : 52,307.88 = 20,909.80 : x
  2. Step 2: Convert to fraction form
    37,905.22/52,307.88 = 20,909.80/x
  3. Step 3: Cross multiply
    37,905.22x = 52,307.88 × 20,909.80
  4. Step 4: Simplify right side
    37,905.22x = 1,093,747,309.22
  5. Step 5: Solve for x
    x = 1,093,747,309.22/37,905.22
  6. Step 6: Final answer
    x = 28,854.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.