Home / 35,623.20-49,159.11-20,515.53

Finding the Fourth Proportional to 35,623.20, 49,159.11 and 20,515.53

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Solution

The fourth proportional to 35,623.20, 49,159.11 and 20,515.53 is: 28,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,623.20 : 49,159.11 = 20,515.53 : x
  2. Step 2: Convert to fraction form
    35,623.20/49,159.11 = 20,515.53/x
  3. Step 3: Cross multiply
    35,623.20x = 49,159.11 × 20,515.53
  4. Step 4: Simplify right side
    35,623.20x = 1,008,525,195.98
  5. Step 5: Solve for x
    x = 1,008,525,195.98/35,623.20
  6. Step 6: Final answer
    x = 28,310.91

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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.