Home / 21,014.40-29,001.24-12,064.80

Finding the Fourth Proportional to 21,014.40, 29,001.24 and 12,064.80

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Solution

The fourth proportional to 21,014.40, 29,001.24 and 12,064.80 is: 16,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.40 : 29,001.24 = 12,064.80 : x
  2. Step 2: Convert to fraction form
    21,014.40/29,001.24 = 12,064.80/x
  3. Step 3: Cross multiply
    21,014.40x = 29,001.24 × 12,064.80
  4. Step 4: Simplify right side
    21,014.40x = 349,894,160.35
  5. Step 5: Solve for x
    x = 349,894,160.35/21,014.40
  6. Step 6: Final answer
    x = 16,650.21

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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.