Home / 21,522.38-29,703.30-13,029.19

Finding the Fourth Proportional to 21,522.38, 29,703.30 and 13,029.19

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Solution

The fourth proportional to 21,522.38, 29,703.30 and 13,029.19 is: 17,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.38 : 29,703.30 = 13,029.19 : x
  2. Step 2: Convert to fraction form
    21,522.38/29,703.30 = 13,029.19/x
  3. Step 3: Cross multiply
    21,522.38x = 29,703.30 × 13,029.19
  4. Step 4: Simplify right side
    21,522.38x = 387,009,816.21
  5. Step 5: Solve for x
    x = 387,009,816.21/21,522.38
  6. Step 6: Final answer
    x = 17,981.74

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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.