Home / 21,644.36-29,869.28-11,708.36

Finding the Fourth Proportional to 21,644.36, 29,869.28 and 11,708.36

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Solution

The fourth proportional to 21,644.36, 29,869.28 and 11,708.36 is: 16,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.36 : 29,869.28 = 11,708.36 : x
  2. Step 2: Convert to fraction form
    21,644.36/29,869.28 = 11,708.36/x
  3. Step 3: Cross multiply
    21,644.36x = 29,869.28 × 11,708.36
  4. Step 4: Simplify right side
    21,644.36x = 349,720,283.18
  5. Step 5: Solve for x
    x = 349,720,283.18/21,644.36
  6. Step 6: Final answer
    x = 16,157.57

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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.