Home / 31,176.90-46,787.22-28,421.28

Finding the Fourth Proportional to 31,176.90, 46,787.22 and 28,421.28

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Solution

The fourth proportional to 31,176.90, 46,787.22 and 28,421.28 is: 42,651.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,176.90 : 46,787.22 = 28,421.28 : x
  2. Step 2: Convert to fraction form
    31,176.90/46,787.22 = 28,421.28/x
  3. Step 3: Cross multiply
    31,176.90x = 46,787.22 × 28,421.28
  4. Step 4: Simplify right side
    31,176.90x = 1,329,752,680.04
  5. Step 5: Solve for x
    x = 1,329,752,680.04/31,176.90
  6. Step 6: Final answer
    x = 42,651.86

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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.