Home / 21,348.23-29,460.39-11,788.11

Finding the Fourth Proportional to 21,348.23, 29,460.39 and 11,788.11

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Solution

The fourth proportional to 21,348.23, 29,460.39 and 11,788.11 is: 16,267.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.23 : 29,460.39 = 11,788.11 : x
  2. Step 2: Convert to fraction form
    21,348.23/29,460.39 = 11,788.11/x
  3. Step 3: Cross multiply
    21,348.23x = 29,460.39 × 11,788.11
  4. Step 4: Simplify right side
    21,348.23x = 347,282,317.96
  5. Step 5: Solve for x
    x = 347,282,317.96/21,348.23
  6. Step 6: Final answer
    x = 16,267.50

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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.