Home / 21,327.80-29,432.67-11,768.11

Finding the Fourth Proportional to 21,327.80, 29,432.67 and 11,768.11

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Solution

The fourth proportional to 21,327.80, 29,432.67 and 11,768.11 is: 16,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.80 : 29,432.67 = 11,768.11 : x
  2. Step 2: Convert to fraction form
    21,327.80/29,432.67 = 11,768.11/x
  3. Step 3: Cross multiply
    21,327.80x = 29,432.67 × 11,768.11
  4. Step 4: Simplify right side
    21,327.80x = 346,366,898.15
  5. Step 5: Solve for x
    x = 346,366,898.15/21,327.80
  6. Step 6: Final answer
    x = 16,240.16

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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.