Home / 25,057.36-34,500.36-20,357.20

Finding the Fourth Proportional to 25,057.36, 34,500.36 and 20,357.20

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Solution

The fourth proportional to 25,057.36, 34,500.36 and 20,357.20 is: 28,028.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,057.36 : 34,500.36 = 20,357.20 : x
  2. Step 2: Convert to fraction form
    25,057.36/34,500.36 = 20,357.20/x
  3. Step 3: Cross multiply
    25,057.36x = 34,500.36 × 20,357.20
  4. Step 4: Simplify right side
    25,057.36x = 702,330,728.59
  5. Step 5: Solve for x
    x = 702,330,728.59/25,057.36
  6. Step 6: Final answer
    x = 28,028.92

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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.