Home / 38,760.30-53,488.53-21,764.68

Finding the Fourth Proportional to 38,760.30, 53,488.53 and 21,764.68

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Solution

The fourth proportional to 38,760.30, 53,488.53 and 21,764.68 is: 30,034.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,760.30 : 53,488.53 = 21,764.68 : x
  2. Step 2: Convert to fraction form
    38,760.30/53,488.53 = 21,764.68/x
  3. Step 3: Cross multiply
    38,760.30x = 53,488.53 × 21,764.68
  4. Step 4: Simplify right side
    38,760.30x = 1,164,160,739.12
  5. Step 5: Solve for x
    x = 1,164,160,739.12/38,760.30
  6. Step 6: Final answer
    x = 30,034.87

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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.