Home / 28,936.71-43,408.25-9,210.65

Finding the Fourth Proportional to 28,936.71, 43,408.25 and 9,210.65

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Solution

The fourth proportional to 28,936.71, 43,408.25 and 9,210.65 is: 13,816.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.71 : 43,408.25 = 9,210.65 : x
  2. Step 2: Convert to fraction form
    28,936.71/43,408.25 = 9,210.65/x
  3. Step 3: Cross multiply
    28,936.71x = 43,408.25 × 9,210.65
  4. Step 4: Simplify right side
    28,936.71x = 399,818,197.86
  5. Step 5: Solve for x
    x = 399,818,197.86/28,936.71
  6. Step 6: Final answer
    x = 13,816.99

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1.5x scale

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.