Home / 21,118.01-29,135.34-12,614.22

Finding the Fourth Proportional to 21,118.01, 29,135.34 and 12,614.22

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Solution

The fourth proportional to 21,118.01, 29,135.34 and 12,614.22 is: 17,403.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,118.01 : 29,135.34 = 12,614.22 : x
  2. Step 2: Convert to fraction form
    21,118.01/29,135.34 = 12,614.22/x
  3. Step 3: Cross multiply
    21,118.01x = 29,135.34 × 12,614.22
  4. Step 4: Simplify right side
    21,118.01x = 367,519,588.53
  5. Step 5: Solve for x
    x = 367,519,588.53/21,118.01
  6. Step 6: Final answer
    x = 17,403.14

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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.