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Finding the Fourth Proportional to 29,979.37, 44,971 and 9,988.01

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Solution

The fourth proportional to 29,979.37, 44,971 and 9,988.01 is: 14,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,979.37 : 44,971 = 9,988.01 : x
  2. Step 2: Convert to fraction form
    29,979.37/44,971 = 9,988.01/x
  3. Step 3: Cross multiply
    29,979.37x = 44,971 × 9,988.01
  4. Step 4: Simplify right side
    29,979.37x = 449,170,797.71
  5. Step 5: Solve for x
    x = 449,170,797.71/29,979.37
  6. Step 6: Final answer
    x = 14,982.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.