Home / 21,887.10-30,200.86-12,326.48

Finding the Fourth Proportional to 21,887.10, 30,200.86 and 12,326.48

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Solution

The fourth proportional to 21,887.10, 30,200.86 and 12,326.48 is: 17,008.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.10 : 30,200.86 = 12,326.48 : x
  2. Step 2: Convert to fraction form
    21,887.10/30,200.86 = 12,326.48/x
  3. Step 3: Cross multiply
    21,887.10x = 30,200.86 × 12,326.48
  4. Step 4: Simplify right side
    21,887.10x = 372,270,296.77
  5. Step 5: Solve for x
    x = 372,270,296.77/21,887.10
  6. Step 6: Final answer
    x = 17,008.66

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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.