Home / 32,876.93-45,371.05-20,129.87

Finding the Fourth Proportional to 32,876.93, 45,371.05 and 20,129.87

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Solution

The fourth proportional to 32,876.93, 45,371.05 and 20,129.87 is: 27,779.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,876.93 : 45,371.05 = 20,129.87 : x
  2. Step 2: Convert to fraction form
    32,876.93/45,371.05 = 20,129.87/x
  3. Step 3: Cross multiply
    32,876.93x = 45,371.05 × 20,129.87
  4. Step 4: Simplify right side
    32,876.93x = 913,313,061.08
  5. Step 5: Solve for x
    x = 913,313,061.08/32,876.93
  6. Step 6: Final answer
    x = 27,779.76

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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.