Home / 25,728.18-35,520.84-19,748.40

Finding the Fourth Proportional to 25,728.18, 35,520.84 and 19,748.40

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Solution

The fourth proportional to 25,728.18, 35,520.84 and 19,748.40 is: 27,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.18 : 35,520.84 = 19,748.40 : x
  2. Step 2: Convert to fraction form
    25,728.18/35,520.84 = 19,748.40/x
  3. Step 3: Cross multiply
    25,728.18x = 35,520.84 × 19,748.40
  4. Step 4: Simplify right side
    25,728.18x = 701,479,756.66
  5. Step 5: Solve for x
    x = 701,479,756.66/25,728.18
  6. Step 6: Final answer
    x = 27,265.04

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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.