Home / 39,854.04-54,998.64-21,949.08

Finding the Fourth Proportional to 39,854.04, 54,998.64 and 21,949.08

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Solution

The fourth proportional to 39,854.04, 54,998.64 and 21,949.08 is: 30,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,854.04 : 54,998.64 = 21,949.08 : x
  2. Step 2: Convert to fraction form
    39,854.04/54,998.64 = 21,949.08/x
  3. Step 3: Cross multiply
    39,854.04x = 54,998.64 × 21,949.08
  4. Step 4: Simplify right side
    39,854.04x = 1,207,169,549.25
  5. Step 5: Solve for x
    x = 1,207,169,549.25/39,854.04
  6. Step 6: Final answer
    x = 30,289.77

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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.