Home / 39,613.04-54,666.60-21,707.90

Finding the Fourth Proportional to 39,613.04, 54,666.60 and 21,707.90

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Solution

The fourth proportional to 39,613.04, 54,666.60 and 21,707.90 is: 29,957.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613.04 : 54,666.60 = 21,707.90 : x
  2. Step 2: Convert to fraction form
    39,613.04/54,666.60 = 21,707.90/x
  3. Step 3: Cross multiply
    39,613.04x = 54,666.60 × 21,707.90
  4. Step 4: Simplify right side
    39,613.04x = 1,186,697,086.14
  5. Step 5: Solve for x
    x = 1,186,697,086.14/39,613.04
  6. Step 6: Final answer
    x = 29,957.23

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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.