Home / 25,365.12-38,033.28-21,230.88

Finding the Fourth Proportional to 25,365.12, 38,033.28 and 21,230.88

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Solution

The fourth proportional to 25,365.12, 38,033.28 and 21,230.88 is: 31,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,365.12 : 38,033.28 = 21,230.88 : x
  2. Step 2: Convert to fraction form
    25,365.12/38,033.28 = 21,230.88/x
  3. Step 3: Cross multiply
    25,365.12x = 38,033.28 × 21,230.88
  4. Step 4: Simplify right side
    25,365.12x = 807,480,003.69
  5. Step 5: Solve for x
    x = 807,480,003.69/25,365.12
  6. Step 6: Final answer
    x = 31,834.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.