Home / 39,740.60-54,842.94-21,834.47

Finding the Fourth Proportional to 39,740.60, 54,842.94 and 21,834.47

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Solution

The fourth proportional to 39,740.60, 54,842.94 and 21,834.47 is: 30,132.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,740.60 : 54,842.94 = 21,834.47 : x
  2. Step 2: Convert to fraction form
    39,740.60/54,842.94 = 21,834.47/x
  3. Step 3: Cross multiply
    39,740.60x = 54,842.94 × 21,834.47
  4. Step 4: Simplify right side
    39,740.60x = 1,197,466,528.14
  5. Step 5: Solve for x
    x = 1,197,466,528.14/39,740.60
  6. Step 6: Final answer
    x = 30,132.07

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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.