Home / 25,158.75-34,710.23-15,090.45

Finding the Fourth Proportional to 25,158.75, 34,710.23 and 15,090.45

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Solution

The fourth proportional to 25,158.75, 34,710.23 and 15,090.45 is: 20,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,158.75 : 34,710.23 = 15,090.45 : x
  2. Step 2: Convert to fraction form
    25,158.75/34,710.23 = 15,090.45/x
  3. Step 3: Cross multiply
    25,158.75x = 34,710.23 × 15,090.45
  4. Step 4: Simplify right side
    25,158.75x = 523,792,914.85
  5. Step 5: Solve for x
    x = 523,792,914.85/25,158.75
  6. Step 6: Final answer
    x = 20,819.51

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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.