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Finding the Fourth Proportional to 28,897, 43,358.02 and 10,190.40

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Solution

The fourth proportional to 28,897, 43,358.02 and 10,190.40 is: 15,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897 : 43,358.02 = 10,190.40 : x
  2. Step 2: Convert to fraction form
    28,897/43,358.02 = 10,190.40/x
  3. Step 3: Cross multiply
    28,897x = 43,358.02 × 10,190.40
  4. Step 4: Simplify right side
    28,897x = 441,835,567.01
  5. Step 5: Solve for x
    x = 441,835,567.01/28,897
  6. Step 6: Final answer
    x = 15,290.02

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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.