Home / 21,957.64-30,301.26-12,526.36

Finding the Fourth Proportional to 21,957.64, 30,301.26 and 12,526.36

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Solution

The fourth proportional to 21,957.64, 30,301.26 and 12,526.36 is: 17,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.64 : 30,301.26 = 12,526.36 : x
  2. Step 2: Convert to fraction form
    21,957.64/30,301.26 = 12,526.36/x
  3. Step 3: Cross multiply
    21,957.64x = 30,301.26 × 12,526.36
  4. Step 4: Simplify right side
    21,957.64x = 379,564,491.21
  5. Step 5: Solve for x
    x = 379,564,491.21/21,957.64
  6. Step 6: Final answer
    x = 17,286.22

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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.