Home / 21,265.78-29,347.23-11,834.95

Finding the Fourth Proportional to 21,265.78, 29,347.23 and 11,834.95

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Solution

The fourth proportional to 21,265.78, 29,347.23 and 11,834.95 is: 16,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.78 : 29,347.23 = 11,834.95 : x
  2. Step 2: Convert to fraction form
    21,265.78/29,347.23 = 11,834.95/x
  3. Step 3: Cross multiply
    21,265.78x = 29,347.23 × 11,834.95
  4. Step 4: Simplify right side
    21,265.78x = 347,322,999.69
  5. Step 5: Solve for x
    x = 347,322,999.69/21,265.78
  6. Step 6: Final answer
    x = 16,332.48

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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.