Home / 21,305.32-29,401.44-12,358.12

Finding the Fourth Proportional to 21,305.32, 29,401.44 and 12,358.12

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Solution

The fourth proportional to 21,305.32, 29,401.44 and 12,358.12 is: 17,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.32 : 29,401.44 = 12,358.12 : x
  2. Step 2: Convert to fraction form
    21,305.32/29,401.44 = 12,358.12/x
  3. Step 3: Cross multiply
    21,305.32x = 29,401.44 × 12,358.12
  4. Step 4: Simplify right side
    21,305.32x = 363,346,523.69
  5. Step 5: Solve for x
    x = 363,346,523.69/21,305.32
  6. Step 6: Final answer
    x = 17,054.26

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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.