Home / 21,603.55-29,811.86-12,044.49

Finding the Fourth Proportional to 21,603.55, 29,811.86 and 12,044.49

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Solution

The fourth proportional to 21,603.55, 29,811.86 and 12,044.49 is: 16,620.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.55 : 29,811.86 = 12,044.49 : x
  2. Step 2: Convert to fraction form
    21,603.55/29,811.86 = 12,044.49/x
  3. Step 3: Cross multiply
    21,603.55x = 29,811.86 × 12,044.49
  4. Step 4: Simplify right side
    21,603.55x = 359,068,649.65
  5. Step 5: Solve for x
    x = 359,068,649.65/21,603.55
  6. Step 6: Final answer
    x = 16,620.82

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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.