Home / 25,452.79-35,158.50-21,217.69

Finding the Fourth Proportional to 25,452.79, 35,158.50 and 21,217.69

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Solution

The fourth proportional to 25,452.79, 35,158.50 and 21,217.69 is: 29,308.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,452.79 : 35,158.50 = 21,217.69 : x
  2. Step 2: Convert to fraction form
    25,452.79/35,158.50 = 21,217.69/x
  3. Step 3: Cross multiply
    25,452.79x = 35,158.50 × 21,217.69
  4. Step 4: Simplify right side
    25,452.79x = 745,982,153.87
  5. Step 5: Solve for x
    x = 745,982,153.87/25,452.79
  6. Step 6: Final answer
    x = 29,308.46

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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.