Home / 21,249.72-29,327.76-15,301.08

Finding the Fourth Proportional to 21,249.72, 29,327.76 and 15,301.08

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Solution

The fourth proportional to 21,249.72, 29,327.76 and 15,301.08 is: 21,117.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.72 : 29,327.76 = 15,301.08 : x
  2. Step 2: Convert to fraction form
    21,249.72/29,327.76 = 15,301.08/x
  3. Step 3: Cross multiply
    21,249.72x = 29,327.76 × 15,301.08
  4. Step 4: Simplify right side
    21,249.72x = 448,746,401.98
  5. Step 5: Solve for x
    x = 448,746,401.98/21,249.72
  6. Step 6: Final answer
    x = 21,117.76

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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.