Home / 38,040.81-52,491.69-21,042.78

Finding the Fourth Proportional to 38,040.81, 52,491.69 and 21,042.78

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Solution

The fourth proportional to 38,040.81, 52,491.69 and 21,042.78 is: 29,036.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,040.81 : 52,491.69 = 21,042.78 : x
  2. Step 2: Convert to fraction form
    38,040.81/52,491.69 = 21,042.78/x
  3. Step 3: Cross multiply
    38,040.81x = 52,491.69 × 21,042.78
  4. Step 4: Simplify right side
    38,040.81x = 1,104,571,084.50
  5. Step 5: Solve for x
    x = 1,104,571,084.50/38,040.81
  6. Step 6: Final answer
    x = 29,036.48

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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.