Home / 25,775.20-38,702.40-14,111.20

Finding the Fourth Proportional to 25,775.20, 38,702.40 and 14,111.20

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Solution

The fourth proportional to 25,775.20, 38,702.40 and 14,111.20 is: 21,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,775.20 : 38,702.40 = 14,111.20 : x
  2. Step 2: Convert to fraction form
    25,775.20/38,702.40 = 14,111.20/x
  3. Step 3: Cross multiply
    25,775.20x = 38,702.40 × 14,111.20
  4. Step 4: Simplify right side
    25,775.20x = 546,137,306.88
  5. Step 5: Solve for x
    x = 546,137,306.88/25,775.20
  6. Step 6: Final answer
    x = 21,188.48

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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.