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Finding the Fourth Proportional to 42,401.20, 63,601.80 and 23,738.80

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Solution

The fourth proportional to 42,401.20, 63,601.80 and 23,738.80 is: 35,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,401.20 : 63,601.80 = 23,738.80 : x
  2. Step 2: Convert to fraction form
    42,401.20/63,601.80 = 23,738.80/x
  3. Step 3: Cross multiply
    42,401.20x = 63,601.80 × 23,738.80
  4. Step 4: Simplify right side
    42,401.20x = 1,509,830,409.84
  5. Step 5: Solve for x
    x = 1,509,830,409.84/42,401.20
  6. Step 6: Final answer
    x = 35,608.20

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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.