Home / 21,560.51-29,761.53-12,610.82

Finding the Fourth Proportional to 21,560.51, 29,761.53 and 12,610.82

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Solution

The fourth proportional to 21,560.51, 29,761.53 and 12,610.82 is: 17,407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.51 : 29,761.53 = 12,610.82 : x
  2. Step 2: Convert to fraction form
    21,560.51/29,761.53 = 12,610.82/x
  3. Step 3: Cross multiply
    21,560.51x = 29,761.53 × 12,610.82
  4. Step 4: Simplify right side
    21,560.51x = 375,317,324.87
  5. Step 5: Solve for x
    x = 375,317,324.87/21,560.51
  6. Step 6: Final answer
    x = 17,407.63

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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.