Home / 28,289.46-42,434.43-8,569.56

Finding the Fourth Proportional to 28,289.46, 42,434.43 and 8,569.56

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Solution

The fourth proportional to 28,289.46, 42,434.43 and 8,569.56 is: 12,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.46 : 42,434.43 = 8,569.56 : x
  2. Step 2: Convert to fraction form
    28,289.46/42,434.43 = 8,569.56/x
  3. Step 3: Cross multiply
    28,289.46x = 42,434.43 × 8,569.56
  4. Step 4: Simplify right side
    28,289.46x = 363,644,393.95
  5. Step 5: Solve for x
    x = 363,644,393.95/28,289.46
  6. Step 6: Final answer
    x = 12,854.41

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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.