Home / 19,840.61-29,761.10-5,049.55

Finding the Fourth Proportional to 19,840.61, 29,761.10 and 5,049.55

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Solution

The fourth proportional to 19,840.61, 29,761.10 and 5,049.55 is: 7,574.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.61 : 29,761.10 = 5,049.55 : x
  2. Step 2: Convert to fraction form
    19,840.61/29,761.10 = 5,049.55/x
  3. Step 3: Cross multiply
    19,840.61x = 29,761.10 × 5,049.55
  4. Step 4: Simplify right side
    19,840.61x = 150,279,988.45
  5. Step 5: Solve for x
    x = 150,279,988.45/19,840.61
  6. Step 6: Final answer
    x = 7,574.36

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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.