Home / 21,014.91-29,001.11-12,064.01

Finding the Fourth Proportional to 21,014.91, 29,001.11 and 12,064.01

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Solution

The fourth proportional to 21,014.91, 29,001.11 and 12,064.01 is: 16,648.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.91 : 29,001.11 = 12,064.01 : x
  2. Step 2: Convert to fraction form
    21,014.91/29,001.11 = 12,064.01/x
  3. Step 3: Cross multiply
    21,014.91x = 29,001.11 × 12,064.01
  4. Step 4: Simplify right side
    21,014.91x = 349,869,475.73
  5. Step 5: Solve for x
    x = 349,869,475.73/21,014.91
  6. Step 6: Final answer
    x = 16,648.63

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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.