Home / 21,604.21-29,813.27-12,531.17

Finding the Fourth Proportional to 21,604.21, 29,813.27 and 12,531.17

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Solution

The fourth proportional to 21,604.21, 29,813.27 and 12,531.17 is: 17,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.21 : 29,813.27 = 12,531.17 : x
  2. Step 2: Convert to fraction form
    21,604.21/29,813.27 = 12,531.17/x
  3. Step 3: Cross multiply
    21,604.21x = 29,813.27 × 12,531.17
  4. Step 4: Simplify right side
    21,604.21x = 373,595,166.50
  5. Step 5: Solve for x
    x = 373,595,166.50/21,604.21
  6. Step 6: Final answer
    x = 17,292.70

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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.