Home / 39,798.92-54,922.66-21,895.08

Finding the Fourth Proportional to 39,798.92, 54,922.66 and 21,895.08

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Solution

The fourth proportional to 39,798.92, 54,922.66 and 21,895.08 is: 30,215.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,798.92 : 54,922.66 = 21,895.08 : x
  2. Step 2: Convert to fraction form
    39,798.92/54,922.66 = 21,895.08/x
  3. Step 3: Cross multiply
    39,798.92x = 54,922.66 × 21,895.08
  4. Step 4: Simplify right side
    39,798.92x = 1,202,536,034.51
  5. Step 5: Solve for x
    x = 1,202,536,034.51/39,798.92
  6. Step 6: Final answer
    x = 30,215.29

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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.