Home / 28,788.16-43,182.40-8,011.68

Finding the Fourth Proportional to 28,788.16, 43,182.40 and 8,011.68

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Solution

The fourth proportional to 28,788.16, 43,182.40 and 8,011.68 is: 12,017.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.16 : 43,182.40 = 8,011.68 : x
  2. Step 2: Convert to fraction form
    28,788.16/43,182.40 = 8,011.68/x
  3. Step 3: Cross multiply
    28,788.16x = 43,182.40 × 8,011.68
  4. Step 4: Simplify right side
    28,788.16x = 345,963,570.43
  5. Step 5: Solve for x
    x = 345,963,570.43/28,788.16
  6. Step 6: Final answer
    x = 12,017.56

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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.