Home / 32,640.14-45,042.80-18,492.68

Finding the Fourth Proportional to 32,640.14, 45,042.80 and 18,492.68

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Solution

The fourth proportional to 32,640.14, 45,042.80 and 18,492.68 is: 25,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,640.14 : 45,042.80 = 18,492.68 : x
  2. Step 2: Convert to fraction form
    32,640.14/45,042.80 = 18,492.68/x
  3. Step 3: Cross multiply
    32,640.14x = 45,042.80 × 18,492.68
  4. Step 4: Simplify right side
    32,640.14x = 832,962,086.70
  5. Step 5: Solve for x
    x = 832,962,086.70/32,640.14
  6. Step 6: Final answer
    x = 25,519.56

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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.