Home / 21,364.43-29,476.37-12,410.21

Finding the Fourth Proportional to 21,364.43, 29,476.37 and 12,410.21

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Solution

The fourth proportional to 21,364.43, 29,476.37 and 12,410.21 is: 17,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.43 : 29,476.37 = 12,410.21 : x
  2. Step 2: Convert to fraction form
    21,364.43/29,476.37 = 12,410.21/x
  3. Step 3: Cross multiply
    21,364.43x = 29,476.37 × 12,410.21
  4. Step 4: Simplify right side
    21,364.43x = 365,808,046.45
  5. Step 5: Solve for x
    x = 365,808,046.45/21,364.43
  6. Step 6: Final answer
    x = 17,122.30

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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.