Home / 21,024.13-29,025.18-13,960.21

Finding the Fourth Proportional to 21,024.13, 29,025.18 and 13,960.21

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Solution

The fourth proportional to 21,024.13, 29,025.18 and 13,960.21 is: 19,272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.13 : 29,025.18 = 13,960.21 : x
  2. Step 2: Convert to fraction form
    21,024.13/29,025.18 = 13,960.21/x
  3. Step 3: Cross multiply
    21,024.13x = 29,025.18 × 13,960.21
  4. Step 4: Simplify right side
    21,024.13x = 405,197,608.09
  5. Step 5: Solve for x
    x = 405,197,608.09/21,024.13
  6. Step 6: Final answer
    x = 19,272.98

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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.