Home / 28,728.60-43,092.90-9,008.66

Finding the Fourth Proportional to 28,728.60, 43,092.90 and 9,008.66

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Solution

The fourth proportional to 28,728.60, 43,092.90 and 9,008.66 is: 13,512.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.60 : 43,092.90 = 9,008.66 : x
  2. Step 2: Convert to fraction form
    28,728.60/43,092.90 = 9,008.66/x
  3. Step 3: Cross multiply
    28,728.60x = 43,092.90 × 9,008.66
  4. Step 4: Simplify right side
    28,728.60x = 388,209,284.51
  5. Step 5: Solve for x
    x = 388,209,284.51/28,728.60
  6. Step 6: Final answer
    x = 13,512.99

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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.