Home / 21,650.08-29,883.91-12,701.20

Finding the Fourth Proportional to 21,650.08, 29,883.91 and 12,701.20

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Solution

The fourth proportional to 21,650.08, 29,883.91 and 12,701.20 is: 17,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650.08 : 29,883.91 = 12,701.20 : x
  2. Step 2: Convert to fraction form
    21,650.08/29,883.91 = 12,701.20/x
  3. Step 3: Cross multiply
    21,650.08x = 29,883.91 × 12,701.20
  4. Step 4: Simplify right side
    21,650.08x = 379,561,454.19
  5. Step 5: Solve for x
    x = 379,561,454.19/21,650.08
  6. Step 6: Final answer
    x = 17,531.64

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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.