Home / 21,099.04-29,117.28-11,668.48

Finding the Fourth Proportional to 21,099.04, 29,117.28 and 11,668.48

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Solution

The fourth proportional to 21,099.04, 29,117.28 and 11,668.48 is: 16,102.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099.04 : 29,117.28 = 11,668.48 : x
  2. Step 2: Convert to fraction form
    21,099.04/29,117.28 = 11,668.48/x
  3. Step 3: Cross multiply
    21,099.04x = 29,117.28 × 11,668.48
  4. Step 4: Simplify right side
    21,099.04x = 339,754,399.33
  5. Step 5: Solve for x
    x = 339,754,399.33/21,099.04
  6. Step 6: Final answer
    x = 16,102.84

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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.