Home / 26,989.83-40,485-10,345.89

Finding the Fourth Proportional to 26,989.83, 40,485 and 10,345.89

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Solution

The fourth proportional to 26,989.83, 40,485 and 10,345.89 is: 15,518.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,989.83 : 40,485 = 10,345.89 : x
  2. Step 2: Convert to fraction form
    26,989.83/40,485 = 10,345.89/x
  3. Step 3: Cross multiply
    26,989.83x = 40,485 × 10,345.89
  4. Step 4: Simplify right side
    26,989.83x = 418,853,356.65
  5. Step 5: Solve for x
    x = 418,853,356.65/26,989.83
  6. Step 6: Final answer
    x = 15,518.93

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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.