Home / 21,001.91-28,983.30-12,052.22

Finding the Fourth Proportional to 21,001.91, 28,983.30 and 12,052.22

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Solution

The fourth proportional to 21,001.91, 28,983.30 and 12,052.22 is: 16,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.91 : 28,983.30 = 12,052.22 : x
  2. Step 2: Convert to fraction form
    21,001.91/28,983.30 = 12,052.22/x
  3. Step 3: Cross multiply
    21,001.91x = 28,983.30 × 12,052.22
  4. Step 4: Simplify right side
    21,001.91x = 349,312,963.01
  5. Step 5: Solve for x
    x = 349,312,963.01/21,001.91
  6. Step 6: Final answer
    x = 16,632.44

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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.