Home / 21,943.18-30,284.34-16,903.36

Finding the Fourth Proportional to 21,943.18, 30,284.34 and 16,903.36

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Solution

The fourth proportional to 21,943.18, 30,284.34 and 16,903.36 is: 23,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.18 : 30,284.34 = 16,903.36 : x
  2. Step 2: Convert to fraction form
    21,943.18/30,284.34 = 16,903.36/x
  3. Step 3: Cross multiply
    21,943.18x = 30,284.34 × 16,903.36
  4. Step 4: Simplify right side
    21,943.18x = 511,907,101.38
  5. Step 5: Solve for x
    x = 511,907,101.38/21,943.18
  6. Step 6: Final answer
    x = 23,328.76

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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.