Home / 21,659.51-29,888.22-12,098.11

Finding the Fourth Proportional to 21,659.51, 29,888.22 and 12,098.11

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Solution

The fourth proportional to 21,659.51, 29,888.22 and 12,098.11 is: 16,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,659.51 : 29,888.22 = 12,098.11 : x
  2. Step 2: Convert to fraction form
    21,659.51/29,888.22 = 12,098.11/x
  3. Step 3: Cross multiply
    21,659.51x = 29,888.22 × 12,098.11
  4. Step 4: Simplify right side
    21,659.51x = 361,590,973.26
  5. Step 5: Solve for x
    x = 361,590,973.26/21,659.51
  6. Step 6: Final answer
    x = 16,694.33

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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.