Home / 21,066.48-29,071.80-11,634.84

Finding the Fourth Proportional to 21,066.48, 29,071.80 and 11,634.84

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Solution

The fourth proportional to 21,066.48, 29,071.80 and 11,634.84 is: 16,056.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.48 : 29,071.80 = 11,634.84 : x
  2. Step 2: Convert to fraction form
    21,066.48/29,071.80 = 11,634.84/x
  3. Step 3: Cross multiply
    21,066.48x = 29,071.80 × 11,634.84
  4. Step 4: Simplify right side
    21,066.48x = 338,245,741.51
  5. Step 5: Solve for x
    x = 338,245,741.51/21,066.48
  6. Step 6: Final answer
    x = 16,056.11

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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.