Home / 25,962.80-38,944.20-20,123.60

Finding the Fourth Proportional to 25,962.80, 38,944.20 and 20,123.60

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Solution

The fourth proportional to 25,962.80, 38,944.20 and 20,123.60 is: 30,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,962.80 : 38,944.20 = 20,123.60 : x
  2. Step 2: Convert to fraction form
    25,962.80/38,944.20 = 20,123.60/x
  3. Step 3: Cross multiply
    25,962.80x = 38,944.20 × 20,123.60
  4. Step 4: Simplify right side
    25,962.80x = 783,697,503.12
  5. Step 5: Solve for x
    x = 783,697,503.12/25,962.80
  6. Step 6: Final answer
    x = 30,185.40

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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.