Home / 21,326.47-31,924.08-13,914.97

Finding the Fourth Proportional to 21,326.47, 31,924.08 and 13,914.97

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Solution

The fourth proportional to 21,326.47, 31,924.08 and 13,914.97 is: 20,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.47 : 31,924.08 = 13,914.97 : x
  2. Step 2: Convert to fraction form
    21,326.47/31,924.08 = 13,914.97/x
  3. Step 3: Cross multiply
    21,326.47x = 31,924.08 × 13,914.97
  4. Step 4: Simplify right side
    21,326.47x = 444,222,535.67
  5. Step 5: Solve for x
    x = 444,222,535.67/21,326.47
  6. Step 6: Final answer
    x = 20,829.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.