Home / 21,266.50-29,347.77-11,835.07

Finding the Fourth Proportional to 21,266.50, 29,347.77 and 11,835.07

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Solution

The fourth proportional to 21,266.50, 29,347.77 and 11,835.07 is: 16,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.50 : 29,347.77 = 11,835.07 : x
  2. Step 2: Convert to fraction form
    21,266.50/29,347.77 = 11,835.07/x
  3. Step 3: Cross multiply
    21,266.50x = 29,347.77 × 11,835.07
  4. Step 4: Simplify right side
    21,266.50x = 347,332,912.29
  5. Step 5: Solve for x
    x = 347,332,912.29/21,266.50
  6. Step 6: Final answer
    x = 16,332.40

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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.