Home / 28,924.81-43,391.84-8,929.61

Finding the Fourth Proportional to 28,924.81, 43,391.84 and 8,929.61

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Solution

The fourth proportional to 28,924.81, 43,391.84 and 8,929.61 is: 13,395.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,924.81 : 43,391.84 = 8,929.61 : x
  2. Step 2: Convert to fraction form
    28,924.81/43,391.84 = 8,929.61/x
  3. Step 3: Cross multiply
    28,924.81x = 43,391.84 × 8,929.61
  4. Step 4: Simplify right side
    28,924.81x = 387,472,075.14
  5. Step 5: Solve for x
    x = 387,472,075.14/28,924.81
  6. Step 6: Final answer
    x = 13,395.84

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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.