Home / 21,995.08-30,353.31-21,200.47

Finding the Fourth Proportional to 21,995.08, 30,353.31 and 21,200.47

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Solution

The fourth proportional to 21,995.08, 30,353.31 and 21,200.47 is: 29,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.08 : 30,353.31 = 21,200.47 : x
  2. Step 2: Convert to fraction form
    21,995.08/30,353.31 = 21,200.47/x
  3. Step 3: Cross multiply
    21,995.08x = 30,353.31 × 21,200.47
  4. Step 4: Simplify right side
    21,995.08x = 643,504,438.06
  5. Step 5: Solve for x
    x = 643,504,438.06/21,995.08
  6. Step 6: Final answer
    x = 29,256.74

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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.