Home / 21,681.24-29,925.11-14,114.39

Finding the Fourth Proportional to 21,681.24, 29,925.11 and 14,114.39

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Solution

The fourth proportional to 21,681.24, 29,925.11 and 14,114.39 is: 19,481.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.24 : 29,925.11 = 14,114.39 : x
  2. Step 2: Convert to fraction form
    21,681.24/29,925.11 = 14,114.39/x
  3. Step 3: Cross multiply
    21,681.24x = 29,925.11 × 14,114.39
  4. Step 4: Simplify right side
    21,681.24x = 422,374,625.69
  5. Step 5: Solve for x
    x = 422,374,625.69/21,681.24
  6. Step 6: Final answer
    x = 19,481.11

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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.