Home / 21,194.98-29,250.47-12,242.86

Finding the Fourth Proportional to 21,194.98, 29,250.47 and 12,242.86

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Solution

The fourth proportional to 21,194.98, 29,250.47 and 12,242.86 is: 16,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.98 : 29,250.47 = 12,242.86 : x
  2. Step 2: Convert to fraction form
    21,194.98/29,250.47 = 12,242.86/x
  3. Step 3: Cross multiply
    21,194.98x = 29,250.47 × 12,242.86
  4. Step 4: Simplify right side
    21,194.98x = 358,109,409.14
  5. Step 5: Solve for x
    x = 358,109,409.14/21,194.98
  6. Step 6: Final answer
    x = 16,895.95

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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.