Home / 26,678.15-36,816.62-15,929.31

Finding the Fourth Proportional to 26,678.15, 36,816.62 and 15,929.31

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Solution

The fourth proportional to 26,678.15, 36,816.62 and 15,929.31 is: 21,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,678.15 : 36,816.62 = 15,929.31 : x
  2. Step 2: Convert to fraction form
    26,678.15/36,816.62 = 15,929.31/x
  3. Step 3: Cross multiply
    26,678.15x = 36,816.62 × 15,929.31
  4. Step 4: Simplify right side
    26,678.15x = 586,463,353.13
  5. Step 5: Solve for x
    x = 586,463,353.13/26,678.15
  6. Step 6: Final answer
    x = 21,982.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.