Home / 28,498.14-42,747.81-9,778.08

Finding the Fourth Proportional to 28,498.14, 42,747.81 and 9,778.08

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Solution

The fourth proportional to 28,498.14, 42,747.81 and 9,778.08 is: 14,667.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.14 : 42,747.81 = 9,778.08 : x
  2. Step 2: Convert to fraction form
    28,498.14/42,747.81 = 9,778.08/x
  3. Step 3: Cross multiply
    28,498.14x = 42,747.81 × 9,778.08
  4. Step 4: Simplify right side
    28,498.14x = 417,991,506.00
  5. Step 5: Solve for x
    x = 417,991,506.00/28,498.14
  6. Step 6: Final answer
    x = 14,667.33

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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.