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Finding the Fourth Proportional to 30,020.68, 45,031.02 and 9,244

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Solution

The fourth proportional to 30,020.68, 45,031.02 and 9,244 is: 13,866

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.68 : 45,031.02 = 9,244 : x
  2. Step 2: Convert to fraction form
    30,020.68/45,031.02 = 9,244/x
  3. Step 3: Cross multiply
    30,020.68x = 45,031.02 × 9,244
  4. Step 4: Simplify right side
    30,020.68x = 416,266,748.88
  5. Step 5: Solve for x
    x = 416,266,748.88/30,020.68
  6. Step 6: Final answer
    x = 13,866

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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.