Home / 32,971.11-45,515.85-18,821.22

Finding the Fourth Proportional to 32,971.11, 45,515.85 and 18,821.22

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Solution

The fourth proportional to 32,971.11, 45,515.85 and 18,821.22 is: 25,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,971.11 : 45,515.85 = 18,821.22 : x
  2. Step 2: Convert to fraction form
    32,971.11/45,515.85 = 18,821.22/x
  3. Step 3: Cross multiply
    32,971.11x = 45,515.85 × 18,821.22
  4. Step 4: Simplify right side
    32,971.11x = 856,663,826.34
  5. Step 5: Solve for x
    x = 856,663,826.34/32,971.11
  6. Step 6: Final answer
    x = 25,982.26

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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.