Home / 21,497.76-29,667.13-11,937.85

Finding the Fourth Proportional to 21,497.76, 29,667.13 and 11,937.85

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Solution

The fourth proportional to 21,497.76, 29,667.13 and 11,937.85 is: 16,474.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.76 : 29,667.13 = 11,937.85 : x
  2. Step 2: Convert to fraction form
    21,497.76/29,667.13 = 11,937.85/x
  3. Step 3: Cross multiply
    21,497.76x = 29,667.13 × 11,937.85
  4. Step 4: Simplify right side
    21,497.76x = 354,161,643.86
  5. Step 5: Solve for x
    x = 354,161,643.86/21,497.76
  6. Step 6: Final answer
    x = 16,474.35

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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.