Home / 38,411.20-57,649.20-18,706.60

Finding the Fourth Proportional to 38,411.20, 57,649.20 and 18,706.60

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Solution

The fourth proportional to 38,411.20, 57,649.20 and 18,706.60 is: 28,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,411.20 : 57,649.20 = 18,706.60 : x
  2. Step 2: Convert to fraction form
    38,411.20/57,649.20 = 18,706.60/x
  3. Step 3: Cross multiply
    38,411.20x = 57,649.20 × 18,706.60
  4. Step 4: Simplify right side
    38,411.20x = 1,078,420,524.72
  5. Step 5: Solve for x
    x = 1,078,420,524.72/38,411.20
  6. Step 6: Final answer
    x = 28,075.68

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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.