Home / 21,122.36-31,683.56-6,332.84

Finding the Fourth Proportional to 21,122.36, 31,683.56 and 6,332.84

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Solution

The fourth proportional to 21,122.36, 31,683.56 and 6,332.84 is: 9,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,122.36 : 31,683.56 = 6,332.84 : x
  2. Step 2: Convert to fraction form
    21,122.36/31,683.56 = 6,332.84/x
  3. Step 3: Cross multiply
    21,122.36x = 31,683.56 × 6,332.84
  4. Step 4: Simplify right side
    21,122.36x = 200,646,916.11
  5. Step 5: Solve for x
    x = 200,646,916.11/21,122.36
  6. Step 6: Final answer
    x = 9,499.27

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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.