Home / 32,685.48-45,105.84-18,538.20

Finding the Fourth Proportional to 32,685.48, 45,105.84 and 18,538.20

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Solution

The fourth proportional to 32,685.48, 45,105.84 and 18,538.20 is: 25,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,685.48 : 45,105.84 = 18,538.20 : x
  2. Step 2: Convert to fraction form
    32,685.48/45,105.84 = 18,538.20/x
  3. Step 3: Cross multiply
    32,685.48x = 45,105.84 × 18,538.20
  4. Step 4: Simplify right side
    32,685.48x = 836,181,083.09
  5. Step 5: Solve for x
    x = 836,181,083.09/32,685.48
  6. Step 6: Final answer
    x = 25,582.65

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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.