Home / 28,666.91-43,003.08-11,138.10

Finding the Fourth Proportional to 28,666.91, 43,003.08 and 11,138.10

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Solution

The fourth proportional to 28,666.91, 43,003.08 and 11,138.10 is: 16,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.91 : 43,003.08 = 11,138.10 : x
  2. Step 2: Convert to fraction form
    28,666.91/43,003.08 = 11,138.10/x
  3. Step 3: Cross multiply
    28,666.91x = 43,003.08 × 11,138.10
  4. Step 4: Simplify right side
    28,666.91x = 478,972,605.35
  5. Step 5: Solve for x
    x = 478,972,605.35/28,666.91
  6. Step 6: Final answer
    x = 16,708.21

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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.