Home / 32,812.30-45,276.87-18,665.38

Finding the Fourth Proportional to 32,812.30, 45,276.87 and 18,665.38

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Solution

The fourth proportional to 32,812.30, 45,276.87 and 18,665.38 is: 25,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,812.30 : 45,276.87 = 18,665.38 : x
  2. Step 2: Convert to fraction form
    32,812.30/45,276.87 = 18,665.38/x
  3. Step 3: Cross multiply
    32,812.30x = 45,276.87 × 18,665.38
  4. Step 4: Simplify right side
    32,812.30x = 845,109,983.76
  5. Step 5: Solve for x
    x = 845,109,983.76/32,812.30
  6. Step 6: Final answer
    x = 25,755.89

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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.