Home / 25,318.20-37,977.30-20,397.45

Finding the Fourth Proportional to 25,318.20, 37,977.30 and 20,397.45

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Solution

The fourth proportional to 25,318.20, 37,977.30 and 20,397.45 is: 30,596.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.20 : 37,977.30 = 20,397.45 : x
  2. Step 2: Convert to fraction form
    25,318.20/37,977.30 = 20,397.45/x
  3. Step 3: Cross multiply
    25,318.20x = 37,977.30 × 20,397.45
  4. Step 4: Simplify right side
    25,318.20x = 774,640,077.89
  5. Step 5: Solve for x
    x = 774,640,077.89/25,318.20
  6. Step 6: Final answer
    x = 30,596.18

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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.