Home / 21,277.91-29,363.52-11,848.70

Finding the Fourth Proportional to 21,277.91, 29,363.52 and 11,848.70

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Solution

The fourth proportional to 21,277.91, 29,363.52 and 11,848.70 is: 16,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.91 : 29,363.52 = 11,848.70 : x
  2. Step 2: Convert to fraction form
    21,277.91/29,363.52 = 11,848.70/x
  3. Step 3: Cross multiply
    21,277.91x = 29,363.52 × 11,848.70
  4. Step 4: Simplify right side
    21,277.91x = 347,919,539.42
  5. Step 5: Solve for x
    x = 347,919,539.42/21,277.91
  6. Step 6: Final answer
    x = 16,351.21

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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.