Home / 21,122.22-29,151.93-12,047.59

Finding the Fourth Proportional to 21,122.22, 29,151.93 and 12,047.59

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Solution

The fourth proportional to 21,122.22, 29,151.93 and 12,047.59 is: 16,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,122.22 : 29,151.93 = 12,047.59 : x
  2. Step 2: Convert to fraction form
    21,122.22/29,151.93 = 12,047.59/x
  3. Step 3: Cross multiply
    21,122.22x = 29,151.93 × 12,047.59
  4. Step 4: Simplify right side
    21,122.22x = 351,210,500.35
  5. Step 5: Solve for x
    x = 351,210,500.35/21,122.22
  6. Step 6: Final answer
    x = 16,627.54

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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.