Home / 21,119.52-29,148.21-12,044.91

Finding the Fourth Proportional to 21,119.52, 29,148.21 and 12,044.91

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Solution

The fourth proportional to 21,119.52, 29,148.21 and 12,044.91 is: 16,623.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,119.52 : 29,148.21 = 12,044.91 : x
  2. Step 2: Convert to fraction form
    21,119.52/29,148.21 = 12,044.91/x
  3. Step 3: Cross multiply
    21,119.52x = 29,148.21 × 12,044.91
  4. Step 4: Simplify right side
    21,119.52x = 351,087,566.11
  5. Step 5: Solve for x
    x = 351,087,566.11/21,119.52
  6. Step 6: Final answer
    x = 16,623.84

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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.