Home / 25,977.20-38,890.20-19,432.40

Finding the Fourth Proportional to 25,977.20, 38,890.20 and 19,432.40

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Solution

The fourth proportional to 25,977.20, 38,890.20 and 19,432.40 is: 29,092.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,977.20 : 38,890.20 = 19,432.40 : x
  2. Step 2: Convert to fraction form
    25,977.20/38,890.20 = 19,432.40/x
  3. Step 3: Cross multiply
    25,977.20x = 38,890.20 × 19,432.40
  4. Step 4: Simplify right side
    25,977.20x = 755,729,922.48
  5. Step 5: Solve for x
    x = 755,729,922.48/25,977.20
  6. Step 6: Final answer
    x = 29,092.05

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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.