Home / 21,350.66-29,453.90-13,799.36

Finding the Fourth Proportional to 21,350.66, 29,453.90 and 13,799.36

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Solution

The fourth proportional to 21,350.66, 29,453.90 and 13,799.36 is: 19,036.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.66 : 29,453.90 = 13,799.36 : x
  2. Step 2: Convert to fraction form
    21,350.66/29,453.90 = 13,799.36/x
  3. Step 3: Cross multiply
    21,350.66x = 29,453.90 × 13,799.36
  4. Step 4: Simplify right side
    21,350.66x = 406,444,969.50
  5. Step 5: Solve for x
    x = 406,444,969.50/21,350.66
  6. Step 6: Final answer
    x = 19,036.65

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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.