Home / 21,329.16-29,434.43-11,769.47

Finding the Fourth Proportional to 21,329.16, 29,434.43 and 11,769.47

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Solution

The fourth proportional to 21,329.16, 29,434.43 and 11,769.47 is: 16,241.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.16 : 29,434.43 = 11,769.47 : x
  2. Step 2: Convert to fraction form
    21,329.16/29,434.43 = 11,769.47/x
  3. Step 3: Cross multiply
    21,329.16x = 29,434.43 × 11,769.47
  4. Step 4: Simplify right side
    21,329.16x = 346,427,743.86
  5. Step 5: Solve for x
    x = 346,427,743.86/21,329.16
  6. Step 6: Final answer
    x = 16,241.98

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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.