Home / 21,594.78-29,795.52-12,163.53

Finding the Fourth Proportional to 21,594.78, 29,795.52 and 12,163.53

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Solution

The fourth proportional to 21,594.78, 29,795.52 and 12,163.53 is: 16,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,594.78 : 29,795.52 = 12,163.53 : x
  2. Step 2: Convert to fraction form
    21,594.78/29,795.52 = 12,163.53/x
  3. Step 3: Cross multiply
    21,594.78x = 29,795.52 × 12,163.53
  4. Step 4: Simplify right side
    21,594.78x = 362,418,701.39
  5. Step 5: Solve for x
    x = 362,418,701.39/21,594.78
  6. Step 6: Final answer
    x = 16,782.70

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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.