Home / 21,976.62-30,332.01-17,187.06

Finding the Fourth Proportional to 21,976.62, 30,332.01 and 17,187.06

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Solution

The fourth proportional to 21,976.62, 30,332.01 and 17,187.06 is: 23,721.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976.62 : 30,332.01 = 17,187.06 : x
  2. Step 2: Convert to fraction form
    21,976.62/30,332.01 = 17,187.06/x
  3. Step 3: Cross multiply
    21,976.62x = 30,332.01 × 17,187.06
  4. Step 4: Simplify right side
    21,976.62x = 521,318,075.79
  5. Step 5: Solve for x
    x = 521,318,075.79/21,976.62
  6. Step 6: Final answer
    x = 23,721.49

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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.