Home / 28,990.08-43,471.36-11,229.05

Finding the Fourth Proportional to 28,990.08, 43,471.36 and 11,229.05

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Solution

The fourth proportional to 28,990.08, 43,471.36 and 11,229.05 is: 16,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.08 : 43,471.36 = 11,229.05 : x
  2. Step 2: Convert to fraction form
    28,990.08/43,471.36 = 11,229.05/x
  3. Step 3: Cross multiply
    28,990.08x = 43,471.36 × 11,229.05
  4. Step 4: Simplify right side
    28,990.08x = 488,142,155.61
  5. Step 5: Solve for x
    x = 488,142,155.61/28,990.08
  6. Step 6: Final answer
    x = 16,838.25

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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.