Home / 21,044.16-31,566.18-12,272.92

Finding the Fourth Proportional to 21,044.16, 31,566.18 and 12,272.92

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Solution

The fourth proportional to 21,044.16, 31,566.18 and 12,272.92 is: 18,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.16 : 31,566.18 = 12,272.92 : x
  2. Step 2: Convert to fraction form
    21,044.16/31,566.18 = 12,272.92/x
  3. Step 3: Cross multiply
    21,044.16x = 31,566.18 × 12,272.92
  4. Step 4: Simplify right side
    21,044.16x = 387,409,201.85
  5. Step 5: Solve for x
    x = 387,409,201.85/21,044.16
  6. Step 6: Final answer
    x = 18,409.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.