Home / 21,723.76-29,981.22-12,292.93

Finding the Fourth Proportional to 21,723.76, 29,981.22 and 12,292.93

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Solution

The fourth proportional to 21,723.76, 29,981.22 and 12,292.93 is: 16,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.76 : 29,981.22 = 12,292.93 : x
  2. Step 2: Convert to fraction form
    21,723.76/29,981.22 = 12,292.93/x
  3. Step 3: Cross multiply
    21,723.76x = 29,981.22 × 12,292.93
  4. Step 4: Simplify right side
    21,723.76x = 368,556,888.87
  5. Step 5: Solve for x
    x = 368,556,888.87/21,723.76
  6. Step 6: Final answer
    x = 16,965.62

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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.