Home / 21,396.60-29,524.73-11,835.18

Finding the Fourth Proportional to 21,396.60, 29,524.73 and 11,835.18

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Solution

The fourth proportional to 21,396.60, 29,524.73 and 11,835.18 is: 16,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.60 : 29,524.73 = 11,835.18 : x
  2. Step 2: Convert to fraction form
    21,396.60/29,524.73 = 11,835.18/x
  3. Step 3: Cross multiply
    21,396.60x = 29,524.73 × 11,835.18
  4. Step 4: Simplify right side
    21,396.60x = 349,430,434.83
  5. Step 5: Solve for x
    x = 349,430,434.83/21,396.60
  6. Step 6: Final answer
    x = 16,331.12

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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.