Home / 22,143.48-30,528.66-17,889.78

Finding the Fourth Proportional to 22,143.48, 30,528.66 and 17,889.78

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Solution

The fourth proportional to 22,143.48, 30,528.66 and 17,889.78 is: 24,664.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.48 : 30,528.66 = 17,889.78 : x
  2. Step 2: Convert to fraction form
    22,143.48/30,528.66 = 17,889.78/x
  3. Step 3: Cross multiply
    22,143.48x = 30,528.66 × 17,889.78
  4. Step 4: Simplify right side
    22,143.48x = 546,151,011.09
  5. Step 5: Solve for x
    x = 546,151,011.09/22,143.48
  6. Step 6: Final answer
    x = 24,664.19

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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.