Home / 21,203.38-31,801.47-5,622.58

Finding the Fourth Proportional to 21,203.38, 31,801.47 and 5,622.58

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Solution

The fourth proportional to 21,203.38, 31,801.47 and 5,622.58 is: 8,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.38 : 31,801.47 = 5,622.58 : x
  2. Step 2: Convert to fraction form
    21,203.38/31,801.47 = 5,622.58/x
  3. Step 3: Cross multiply
    21,203.38x = 31,801.47 × 5,622.58
  4. Step 4: Simplify right side
    21,203.38x = 178,806,309.19
  5. Step 5: Solve for x
    x = 178,806,309.19/21,203.38
  6. Step 6: Final answer
    x = 8,432.92

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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.