Home / 21,713.67-29,965.55-12,281.63

Finding the Fourth Proportional to 21,713.67, 29,965.55 and 12,281.63

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Solution

The fourth proportional to 21,713.67, 29,965.55 and 12,281.63 is: 16,949.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.67 : 29,965.55 = 12,281.63 : x
  2. Step 2: Convert to fraction form
    21,713.67/29,965.55 = 12,281.63/x
  3. Step 3: Cross multiply
    21,713.67x = 29,965.55 × 12,281.63
  4. Step 4: Simplify right side
    21,713.67x = 368,025,586.61
  5. Step 5: Solve for x
    x = 368,025,586.61/21,713.67
  6. Step 6: Final answer
    x = 16,949.03

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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.