Home / 29,169.18-43,688.12-20,443.05

Finding the Fourth Proportional to 29,169.18, 43,688.12 and 20,443.05

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Solution

The fourth proportional to 29,169.18, 43,688.12 and 20,443.05 is: 30,618.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,169.18 : 43,688.12 = 20,443.05 : x
  2. Step 2: Convert to fraction form
    29,169.18/43,688.12 = 20,443.05/x
  3. Step 3: Cross multiply
    29,169.18x = 43,688.12 × 20,443.05
  4. Step 4: Simplify right side
    29,169.18x = 893,118,319.35
  5. Step 5: Solve for x
    x = 893,118,319.35/29,169.18
  6. Step 6: Final answer
    x = 30,618.56

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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.