Home / 27,392.38-37,792.65-21,631.56

Finding the Fourth Proportional to 27,392.38, 37,792.65 and 21,631.56

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Solution

The fourth proportional to 27,392.38, 37,792.65 and 21,631.56 is: 29,844.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,392.38 : 37,792.65 = 21,631.56 : x
  2. Step 2: Convert to fraction form
    27,392.38/37,792.65 = 21,631.56/x
  3. Step 3: Cross multiply
    27,392.38x = 37,792.65 × 21,631.56
  4. Step 4: Simplify right side
    27,392.38x = 817,513,976.03
  5. Step 5: Solve for x
    x = 817,513,976.03/27,392.38
  6. Step 6: Final answer
    x = 29,844.58

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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.