Home / 18,867.72-28,302.55-4,827.87

Finding the Fourth Proportional to 18,867.72, 28,302.55 and 4,827.87

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Solution

The fourth proportional to 18,867.72, 28,302.55 and 4,827.87 is: 7,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.72 : 28,302.55 = 4,827.87 : x
  2. Step 2: Convert to fraction form
    18,867.72/28,302.55 = 4,827.87/x
  3. Step 3: Cross multiply
    18,867.72x = 28,302.55 × 4,827.87
  4. Step 4: Simplify right side
    18,867.72x = 136,641,020.00
  5. Step 5: Solve for x
    x = 136,641,020.00/18,867.72
  6. Step 6: Final answer
    x = 7,242.05

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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.