Home / 21,330.07-29,436.03-11,770.13

Finding the Fourth Proportional to 21,330.07, 29,436.03 and 11,770.13

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Solution

The fourth proportional to 21,330.07, 29,436.03 and 11,770.13 is: 16,243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.07 : 29,436.03 = 11,770.13 : x
  2. Step 2: Convert to fraction form
    21,330.07/29,436.03 = 11,770.13/x
  3. Step 3: Cross multiply
    21,330.07x = 29,436.03 × 11,770.13
  4. Step 4: Simplify right side
    21,330.07x = 346,465,973.37
  5. Step 5: Solve for x
    x = 346,465,973.37/21,330.07
  6. Step 6: Final answer
    x = 16,243.08

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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.