Home / 21,342.69-29,452.91-11,782.58

Finding the Fourth Proportional to 21,342.69, 29,452.91 and 11,782.58

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Solution

The fourth proportional to 21,342.69, 29,452.91 and 11,782.58 is: 16,259.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.69 : 29,452.91 = 11,782.58 : x
  2. Step 2: Convert to fraction form
    21,342.69/29,452.91 = 11,782.58/x
  3. Step 3: Cross multiply
    21,342.69x = 29,452.91 × 11,782.58
  4. Step 4: Simplify right side
    21,342.69x = 347,031,062.13
  5. Step 5: Solve for x
    x = 347,031,062.13/21,342.69
  6. Step 6: Final answer
    x = 16,259.95

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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.