Home / 21,203.01-29,287.71-16,136.46

Finding the Fourth Proportional to 21,203.01, 29,287.71 and 16,136.46

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Solution

The fourth proportional to 21,203.01, 29,287.71 and 16,136.46 is: 22,289.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.01 : 29,287.71 = 16,136.46 : x
  2. Step 2: Convert to fraction form
    21,203.01/29,287.71 = 16,136.46/x
  3. Step 3: Cross multiply
    21,203.01x = 29,287.71 × 16,136.46
  4. Step 4: Simplify right side
    21,203.01x = 472,599,960.91
  5. Step 5: Solve for x
    x = 472,599,960.91/21,203.01
  6. Step 6: Final answer
    x = 22,289.29

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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.