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Finding the Fourth Proportional to 37,089.68, 51,184.68 and 21,979.89

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Solution

The fourth proportional to 37,089.68, 51,184.68 and 21,979.89 is: 30,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,089.68 : 51,184.68 = 21,979.89 : x
  2. Step 2: Convert to fraction form
    37,089.68/51,184.68 = 21,979.89/x
  3. Step 3: Cross multiply
    37,089.68x = 51,184.68 × 21,979.89
  4. Step 4: Simplify right side
    37,089.68x = 1,125,033,636.09
  5. Step 5: Solve for x
    x = 1,125,033,636.09/37,089.68
  6. Step 6: Final answer
    x = 30,332.80

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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.