Home / 29,326.20-43,989.39-7,139.58

Finding the Fourth Proportional to 29,326.20, 43,989.39 and 7,139.58

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Solution

The fourth proportional to 29,326.20, 43,989.39 and 7,139.58 is: 10,709.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,326.20 : 43,989.39 = 7,139.58 : x
  2. Step 2: Convert to fraction form
    29,326.20/43,989.39 = 7,139.58/x
  3. Step 3: Cross multiply
    29,326.20x = 43,989.39 × 7,139.58
  4. Step 4: Simplify right side
    29,326.20x = 314,065,769.06
  5. Step 5: Solve for x
    x = 314,065,769.06/29,326.20
  6. Step 6: Final answer
    x = 10,709.39

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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.