Home / 21,913.68-30,265.84-14,731.14

Finding the Fourth Proportional to 21,913.68, 30,265.84 and 14,731.14

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Solution

The fourth proportional to 21,913.68, 30,265.84 and 14,731.14 is: 20,345.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.68 : 30,265.84 = 14,731.14 : x
  2. Step 2: Convert to fraction form
    21,913.68/30,265.84 = 14,731.14/x
  3. Step 3: Cross multiply
    21,913.68x = 30,265.84 × 14,731.14
  4. Step 4: Simplify right side
    21,913.68x = 445,850,326.26
  5. Step 5: Solve for x
    x = 445,850,326.26/21,913.68
  6. Step 6: Final answer
    x = 20,345.75

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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.