Home / 21,019.44-29,007.90-11,587.98

Finding the Fourth Proportional to 21,019.44, 29,007.90 and 11,587.98

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Solution

The fourth proportional to 21,019.44, 29,007.90 and 11,587.98 is: 15,992.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.44 : 29,007.90 = 11,587.98 : x
  2. Step 2: Convert to fraction form
    21,019.44/29,007.90 = 11,587.98/x
  3. Step 3: Cross multiply
    21,019.44x = 29,007.90 × 11,587.98
  4. Step 4: Simplify right side
    21,019.44x = 336,142,965.04
  5. Step 5: Solve for x
    x = 336,142,965.04/21,019.44
  6. Step 6: Final answer
    x = 15,992.00

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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.