Home / 28,927.35-43,390.56-9,205.68

Finding the Fourth Proportional to 28,927.35, 43,390.56 and 9,205.68

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Solution

The fourth proportional to 28,927.35, 43,390.56 and 9,205.68 is: 13,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.35 : 43,390.56 = 9,205.68 : x
  2. Step 2: Convert to fraction form
    28,927.35/43,390.56 = 9,205.68/x
  3. Step 3: Cross multiply
    28,927.35x = 43,390.56 × 9,205.68
  4. Step 4: Simplify right side
    28,927.35x = 399,439,610.38
  5. Step 5: Solve for x
    x = 399,439,610.38/28,927.35
  6. Step 6: Final answer
    x = 13,808.37

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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.