Home / 25,821.18-35,622.18-19,122.48

Finding the Fourth Proportional to 25,821.18, 35,622.18 and 19,122.48

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Solution

The fourth proportional to 25,821.18, 35,622.18 and 19,122.48 is: 26,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,821.18 : 35,622.18 = 19,122.48 : x
  2. Step 2: Convert to fraction form
    25,821.18/35,622.18 = 19,122.48/x
  3. Step 3: Cross multiply
    25,821.18x = 35,622.18 × 19,122.48
  4. Step 4: Simplify right side
    25,821.18x = 681,184,424.61
  5. Step 5: Solve for x
    x = 681,184,424.61/25,821.18
  6. Step 6: Final answer
    x = 26,380.84

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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.