Home / 22,579.35-31,143.99-15,493.47

Finding the Fourth Proportional to 22,579.35, 31,143.99 and 15,493.47

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Solution

The fourth proportional to 22,579.35, 31,143.99 and 15,493.47 is: 21,370.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.35 : 31,143.99 = 15,493.47 : x
  2. Step 2: Convert to fraction form
    22,579.35/31,143.99 = 15,493.47/x
  3. Step 3: Cross multiply
    22,579.35x = 31,143.99 × 15,493.47
  4. Step 4: Simplify right side
    22,579.35x = 482,528,474.75
  5. Step 5: Solve for x
    x = 482,528,474.75/22,579.35
  6. Step 6: Final answer
    x = 21,370.34

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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.