Home / 21,536.16-29,716.68-12,102.92

Finding the Fourth Proportional to 21,536.16, 29,716.68 and 12,102.92

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Solution

The fourth proportional to 21,536.16, 29,716.68 and 12,102.92 is: 16,700.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,536.16 : 29,716.68 = 12,102.92 : x
  2. Step 2: Convert to fraction form
    21,536.16/29,716.68 = 12,102.92/x
  3. Step 3: Cross multiply
    21,536.16x = 29,716.68 × 12,102.92
  4. Step 4: Simplify right side
    21,536.16x = 359,658,600.71
  5. Step 5: Solve for x
    x = 359,658,600.71/21,536.16
  6. Step 6: Final answer
    x = 16,700.22

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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.