Home / 21,811.95-30,095.82-12,733.19

Finding the Fourth Proportional to 21,811.95, 30,095.82 and 12,733.19

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Solution

The fourth proportional to 21,811.95, 30,095.82 and 12,733.19 is: 17,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.95 : 30,095.82 = 12,733.19 : x
  2. Step 2: Convert to fraction form
    21,811.95/30,095.82 = 12,733.19/x
  3. Step 3: Cross multiply
    21,811.95x = 30,095.82 × 12,733.19
  4. Step 4: Simplify right side
    21,811.95x = 383,215,951.23
  5. Step 5: Solve for x
    x = 383,215,951.23/21,811.95
  6. Step 6: Final answer
    x = 17,569.08

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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.