Home / 22,005.84-30,337.68-21,316.56

Finding the Fourth Proportional to 22,005.84, 30,337.68 and 21,316.56

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Solution

The fourth proportional to 22,005.84, 30,337.68 and 21,316.56 is: 29,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.84 : 30,337.68 = 21,316.56 : x
  2. Step 2: Convert to fraction form
    22,005.84/30,337.68 = 21,316.56/x
  3. Step 3: Cross multiply
    22,005.84x = 30,337.68 × 21,316.56
  4. Step 4: Simplify right side
    22,005.84x = 646,694,975.98
  5. Step 5: Solve for x
    x = 646,694,975.98/22,005.84
  6. Step 6: Final answer
    x = 29,387.43

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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.