Home / 21,351.32-29,465.52-12,398.28

Finding the Fourth Proportional to 21,351.32, 29,465.52 and 12,398.28

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Solution

The fourth proportional to 21,351.32, 29,465.52 and 12,398.28 is: 17,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351.32 : 29,465.52 = 12,398.28 : x
  2. Step 2: Convert to fraction form
    21,351.32/29,465.52 = 12,398.28/x
  3. Step 3: Cross multiply
    21,351.32x = 29,465.52 × 12,398.28
  4. Step 4: Simplify right side
    21,351.32x = 365,321,767.31
  5. Step 5: Solve for x
    x = 365,321,767.31/21,351.32
  6. Step 6: Final answer
    x = 17,110.03

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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.