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Finding the Fourth Proportional to 28,022.94, 42,042.48 and 8,301.87

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Solution

The fourth proportional to 28,022.94, 42,042.48 and 8,301.87 is: 12,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.94 : 42,042.48 = 8,301.87 : x
  2. Step 2: Convert to fraction form
    28,022.94/42,042.48 = 8,301.87/x
  3. Step 3: Cross multiply
    28,022.94x = 42,042.48 × 8,301.87
  4. Step 4: Simplify right side
    28,022.94x = 349,031,203.44
  5. Step 5: Solve for x
    x = 349,031,203.44/28,022.94
  6. Step 6: Final answer
    x = 12,455.20

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1.5x scale

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.