Home / 21,497.12-29,663.76-12,066.72

Finding the Fourth Proportional to 21,497.12, 29,663.76 and 12,066.72

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Solution

The fourth proportional to 21,497.12, 29,663.76 and 12,066.72 is: 16,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.12 : 29,663.76 = 12,066.72 : x
  2. Step 2: Convert to fraction form
    21,497.12/29,663.76 = 12,066.72/x
  3. Step 3: Cross multiply
    21,497.12x = 29,663.76 × 12,066.72
  4. Step 4: Simplify right side
    21,497.12x = 357,944,286.07
  5. Step 5: Solve for x
    x = 357,944,286.07/21,497.12
  6. Step 6: Final answer
    x = 16,650.80

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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.