Home / 37,770.40-52,126.54-20,778.02

Finding the Fourth Proportional to 37,770.40, 52,126.54 and 20,778.02

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Solution

The fourth proportional to 37,770.40, 52,126.54 and 20,778.02 is: 28,675.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,770.40 : 52,126.54 = 20,778.02 : x
  2. Step 2: Convert to fraction form
    37,770.40/52,126.54 = 20,778.02/x
  3. Step 3: Cross multiply
    37,770.40x = 52,126.54 × 20,778.02
  4. Step 4: Simplify right side
    37,770.40x = 1,083,086,173.55
  5. Step 5: Solve for x
    x = 1,083,086,173.55/37,770.40
  6. Step 6: Final answer
    x = 28,675.53

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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.