Home / 21,273.96-29,338.97-13,316.93

Finding the Fourth Proportional to 21,273.96, 29,338.97 and 13,316.93

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Solution

The fourth proportional to 21,273.96, 29,338.97 and 13,316.93 is: 18,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.96 : 29,338.97 = 13,316.93 : x
  2. Step 2: Convert to fraction form
    21,273.96/29,338.97 = 13,316.93/x
  3. Step 3: Cross multiply
    21,273.96x = 29,338.97 × 13,316.93
  4. Step 4: Simplify right side
    21,273.96x = 390,704,796.48
  5. Step 5: Solve for x
    x = 390,704,796.48/21,273.96
  6. Step 6: Final answer
    x = 18,365.40

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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.