Home / 31,120.95-46,667.39-8,929.29

Finding the Fourth Proportional to 31,120.95, 46,667.39 and 8,929.29

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Solution

The fourth proportional to 31,120.95, 46,667.39 and 8,929.29 is: 13,389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.95 : 46,667.39 = 8,929.29 : x
  2. Step 2: Convert to fraction form
    31,120.95/46,667.39 = 8,929.29/x
  3. Step 3: Cross multiply
    31,120.95x = 46,667.39 × 8,929.29
  4. Step 4: Simplify right side
    31,120.95x = 416,706,614.21
  5. Step 5: Solve for x
    x = 416,706,614.21/31,120.95
  6. Step 6: Final answer
    x = 13,389.91

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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.