Home / 28,367.34-42,531.27-12,563.79

Finding the Fourth Proportional to 28,367.34, 42,531.27 and 12,563.79

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Solution

The fourth proportional to 28,367.34, 42,531.27 and 12,563.79 is: 18,836.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.34 : 42,531.27 = 12,563.79 : x
  2. Step 2: Convert to fraction form
    28,367.34/42,531.27 = 12,563.79/x
  3. Step 3: Cross multiply
    28,367.34x = 42,531.27 × 12,563.79
  4. Step 4: Simplify right side
    28,367.34x = 534,353,944.71
  5. Step 5: Solve for x
    x = 534,353,944.71/28,367.34
  6. Step 6: Final answer
    x = 18,836.94

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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.