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Finding the Fourth Proportional to 37,959.98, 52,392.08 and 21,838.12

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Solution

The fourth proportional to 37,959.98, 52,392.08 and 21,838.12 is: 30,140.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,959.98 : 52,392.08 = 21,838.12 : x
  2. Step 2: Convert to fraction form
    37,959.98/52,392.08 = 21,838.12/x
  3. Step 3: Cross multiply
    37,959.98x = 52,392.08 × 21,838.12
  4. Step 4: Simplify right side
    37,959.98x = 1,144,144,453.70
  5. Step 5: Solve for x
    x = 1,144,144,453.70/37,959.98
  6. Step 6: Final answer
    x = 30,140.81

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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.