Home / 38,945.70-53,744.96-21,040.65

Finding the Fourth Proportional to 38,945.70, 53,744.96 and 21,040.65

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Solution

The fourth proportional to 38,945.70, 53,744.96 and 21,040.65 is: 29,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,945.70 : 53,744.96 = 21,040.65 : x
  2. Step 2: Convert to fraction form
    38,945.70/53,744.96 = 21,040.65/x
  3. Step 3: Cross multiply
    38,945.70x = 53,744.96 × 21,040.65
  4. Step 4: Simplify right side
    38,945.70x = 1,130,828,892.62
  5. Step 5: Solve for x
    x = 1,130,828,892.62/38,945.70
  6. Step 6: Final answer
    x = 29,036.04

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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.