Home / 21,449.98-29,577.99-13,060.54

Finding the Fourth Proportional to 21,449.98, 29,577.99 and 13,060.54

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Solution

The fourth proportional to 21,449.98, 29,577.99 and 13,060.54 is: 18,009.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.98 : 29,577.99 = 13,060.54 : x
  2. Step 2: Convert to fraction form
    21,449.98/29,577.99 = 13,060.54/x
  3. Step 3: Cross multiply
    21,449.98x = 29,577.99 × 13,060.54
  4. Step 4: Simplify right side
    21,449.98x = 386,304,521.51
  5. Step 5: Solve for x
    x = 386,304,521.51/21,449.98
  6. Step 6: Final answer
    x = 18,009.55

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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.