Home / 21,123.63-31,685.45-6,332.22

Finding the Fourth Proportional to 21,123.63, 31,685.45 and 6,332.22

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Solution

The fourth proportional to 21,123.63, 31,685.45 and 6,332.22 is: 9,498.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,123.63 : 31,685.45 = 6,332.22 : x
  2. Step 2: Convert to fraction form
    21,123.63/31,685.45 = 6,332.22/x
  3. Step 3: Cross multiply
    21,123.63x = 31,685.45 × 6,332.22
  4. Step 4: Simplify right side
    21,123.63x = 200,639,208.54
  5. Step 5: Solve for x
    x = 200,639,208.54/21,123.63
  6. Step 6: Final answer
    x = 9,498.33

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Similar ratio
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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.