Home / 21,277.22-29,366.11-12,330.16

Finding the Fourth Proportional to 21,277.22, 29,366.11 and 12,330.16

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Solution

The fourth proportional to 21,277.22, 29,366.11 and 12,330.16 is: 17,017.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.22 : 29,366.11 = 12,330.16 : x
  2. Step 2: Convert to fraction form
    21,277.22/29,366.11 = 12,330.16/x
  3. Step 3: Cross multiply
    21,277.22x = 29,366.11 × 12,330.16
  4. Step 4: Simplify right side
    21,277.22x = 362,088,776.88
  5. Step 5: Solve for x
    x = 362,088,776.88/21,277.22
  6. Step 6: Final answer
    x = 17,017.68

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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.