Home / 25,151.60-34,707.60-15,080.84

Finding the Fourth Proportional to 25,151.60, 34,707.60 and 15,080.84

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Solution

The fourth proportional to 25,151.60, 34,707.60 and 15,080.84 is: 20,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,151.60 : 34,707.60 = 15,080.84 : x
  2. Step 2: Convert to fraction form
    25,151.60/34,707.60 = 15,080.84/x
  3. Step 3: Cross multiply
    25,151.60x = 34,707.60 × 15,080.84
  4. Step 4: Simplify right side
    25,151.60x = 523,419,762.38
  5. Step 5: Solve for x
    x = 523,419,762.38/25,151.60
  6. Step 6: Final answer
    x = 20,810.60

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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.