Home / 32,638.05-45,041.39-18,490.79

Finding the Fourth Proportional to 32,638.05, 45,041.39 and 18,490.79

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Solution

The fourth proportional to 32,638.05, 45,041.39 and 18,490.79 is: 25,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,638.05 : 45,041.39 = 18,490.79 : x
  2. Step 2: Convert to fraction form
    32,638.05/45,041.39 = 18,490.79/x
  3. Step 3: Cross multiply
    32,638.05x = 45,041.39 × 18,490.79
  4. Step 4: Simplify right side
    32,638.05x = 832,850,566.14
  5. Step 5: Solve for x
    x = 832,850,566.14/32,638.05
  6. Step 6: Final answer
    x = 25,517.78

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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.