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Finding the Fourth Proportional to 29,019.54, 43,529.32 and 7,959.80

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Solution

The fourth proportional to 29,019.54, 43,529.32 and 7,959.80 is: 11,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,019.54 : 43,529.32 = 7,959.80 : x
  2. Step 2: Convert to fraction form
    29,019.54/43,529.32 = 7,959.80/x
  3. Step 3: Cross multiply
    29,019.54x = 43,529.32 × 7,959.80
  4. Step 4: Simplify right side
    29,019.54x = 346,484,681.34
  5. Step 5: Solve for x
    x = 346,484,681.34/29,019.54
  6. Step 6: Final answer
    x = 11,939.70

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Similar ratio
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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.