Home / 21,254.94-29,330.91-12,302.82

Finding the Fourth Proportional to 21,254.94, 29,330.91 and 12,302.82

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Solution

The fourth proportional to 21,254.94, 29,330.91 and 12,302.82 is: 16,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.94 : 29,330.91 = 12,302.82 : x
  2. Step 2: Convert to fraction form
    21,254.94/29,330.91 = 12,302.82/x
  3. Step 3: Cross multiply
    21,254.94x = 29,330.91 × 12,302.82
  4. Step 4: Simplify right side
    21,254.94x = 360,852,906.17
  5. Step 5: Solve for x
    x = 360,852,906.17/21,254.94
  6. Step 6: Final answer
    x = 16,977.37

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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.