Home / 21,316.24-29,411.94-11,884.60

Finding the Fourth Proportional to 21,316.24, 29,411.94 and 11,884.60

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Solution

The fourth proportional to 21,316.24, 29,411.94 and 11,884.60 is: 16,398.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,316.24 : 29,411.94 = 11,884.60 : x
  2. Step 2: Convert to fraction form
    21,316.24/29,411.94 = 11,884.60/x
  3. Step 3: Cross multiply
    21,316.24x = 29,411.94 × 11,884.60
  4. Step 4: Simplify right side
    21,316.24x = 349,549,142.12
  5. Step 5: Solve for x
    x = 349,549,142.12/21,316.24
  6. Step 6: Final answer
    x = 16,398.26

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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.