Home / 21,939.74-30,254.73-16,575.38

Finding the Fourth Proportional to 21,939.74, 30,254.73 and 16,575.38

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Solution

The fourth proportional to 21,939.74, 30,254.73 and 16,575.38 is: 22,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939.74 : 30,254.73 = 16,575.38 : x
  2. Step 2: Convert to fraction form
    21,939.74/30,254.73 = 16,575.38/x
  3. Step 3: Cross multiply
    21,939.74x = 30,254.73 × 16,575.38
  4. Step 4: Simplify right side
    21,939.74x = 501,483,646.55
  5. Step 5: Solve for x
    x = 501,483,646.55/21,939.74
  6. Step 6: Final answer
    x = 22,857.32

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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.