Home / 43,180.10-64,778.96-18,220.15

Finding the Fourth Proportional to 43,180.10, 64,778.96 and 18,220.15

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Solution

The fourth proportional to 43,180.10, 64,778.96 and 18,220.15 is: 27,333.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,180.10 : 64,778.96 = 18,220.15 : x
  2. Step 2: Convert to fraction form
    43,180.10/64,778.96 = 18,220.15/x
  3. Step 3: Cross multiply
    43,180.10x = 64,778.96 × 18,220.15
  4. Step 4: Simplify right side
    43,180.10x = 1,180,282,368.04
  5. Step 5: Solve for x
    x = 1,180,282,368.04/43,180.10
  6. Step 6: Final answer
    x = 27,333.94

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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.