Home / 25,122.40-34,669.60-16,187.20

Finding the Fourth Proportional to 25,122.40, 34,669.60 and 16,187.20

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Solution

The fourth proportional to 25,122.40, 34,669.60 and 16,187.20 is: 22,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,122.40 : 34,669.60 = 16,187.20 : x
  2. Step 2: Convert to fraction form
    25,122.40/34,669.60 = 16,187.20/x
  3. Step 3: Cross multiply
    25,122.40x = 34,669.60 × 16,187.20
  4. Step 4: Simplify right side
    25,122.40x = 561,203,749.12
  5. Step 5: Solve for x
    x = 561,203,749.12/25,122.40
  6. Step 6: Final answer
    x = 22,338.78

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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.