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Finding the Fourth Proportional to 37,989.99, 52,426.17 and 21,222.99

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Solution

The fourth proportional to 37,989.99, 52,426.17 and 21,222.99 is: 29,287.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,989.99 : 52,426.17 = 21,222.99 : x
  2. Step 2: Convert to fraction form
    37,989.99/52,426.17 = 21,222.99/x
  3. Step 3: Cross multiply
    37,989.99x = 52,426.17 × 21,222.99
  4. Step 4: Simplify right side
    37,989.99x = 1,112,640,081.65
  5. Step 5: Solve for x
    x = 1,112,640,081.65/37,989.99
  6. Step 6: Final answer
    x = 29,287.72

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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.