Home / 28,508.34-42,758.43-9,788.02

Finding the Fourth Proportional to 28,508.34, 42,758.43 and 9,788.02

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Solution

The fourth proportional to 28,508.34, 42,758.43 and 9,788.02 is: 14,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.34 : 42,758.43 = 9,788.02 : x
  2. Step 2: Convert to fraction form
    28,508.34/42,758.43 = 9,788.02/x
  3. Step 3: Cross multiply
    28,508.34x = 42,758.43 × 9,788.02
  4. Step 4: Simplify right side
    28,508.34x = 418,520,538.33
  5. Step 5: Solve for x
    x = 418,520,538.33/28,508.34
  6. Step 6: Final answer
    x = 14,680.64

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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.