Home / 28,926.80-43,389.76-9,205.12

Finding the Fourth Proportional to 28,926.80, 43,389.76 and 9,205.12

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Solution

The fourth proportional to 28,926.80, 43,389.76 and 9,205.12 is: 13,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.80 : 43,389.76 = 9,205.12 : x
  2. Step 2: Convert to fraction form
    28,926.80/43,389.76 = 9,205.12/x
  3. Step 3: Cross multiply
    28,926.80x = 43,389.76 × 9,205.12
  4. Step 4: Simplify right side
    28,926.80x = 399,407,947.57
  5. Step 5: Solve for x
    x = 399,407,947.57/28,926.80
  6. Step 6: Final answer
    x = 13,807.54

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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.