Home / 25,962.40-38,911.20-19,028.80

Finding the Fourth Proportional to 25,962.40, 38,911.20 and 19,028.80

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Solution

The fourth proportional to 25,962.40, 38,911.20 and 19,028.80 is: 28,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,962.40 : 38,911.20 = 19,028.80 : x
  2. Step 2: Convert to fraction form
    25,962.40/38,911.20 = 19,028.80/x
  3. Step 3: Cross multiply
    25,962.40x = 38,911.20 × 19,028.80
  4. Step 4: Simplify right side
    25,962.40x = 740,433,442.56
  5. Step 5: Solve for x
    x = 740,433,442.56/25,962.40
  6. Step 6: Final answer
    x = 28,519.45

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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.