Home / 28,324.79-42,488.15-8,603.31

Finding the Fourth Proportional to 28,324.79, 42,488.15 and 8,603.31

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Solution

The fourth proportional to 28,324.79, 42,488.15 and 8,603.31 is: 12,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.79 : 42,488.15 = 8,603.31 : x
  2. Step 2: Convert to fraction form
    28,324.79/42,488.15 = 8,603.31/x
  3. Step 3: Cross multiply
    28,324.79x = 42,488.15 × 8,603.31
  4. Step 4: Simplify right side
    28,324.79x = 365,538,842.09
  5. Step 5: Solve for x
    x = 365,538,842.09/28,324.79
  6. Step 6: Final answer
    x = 12,905.26

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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.