Home / 20,916.48-31,364.27-6,683.07

Finding the Fourth Proportional to 20,916.48, 31,364.27 and 6,683.07

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Solution

The fourth proportional to 20,916.48, 31,364.27 and 6,683.07 is: 10,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.48 : 31,364.27 = 6,683.07 : x
  2. Step 2: Convert to fraction form
    20,916.48/31,364.27 = 6,683.07/x
  3. Step 3: Cross multiply
    20,916.48x = 31,364.27 × 6,683.07
  4. Step 4: Simplify right side
    20,916.48x = 209,609,611.91
  5. Step 5: Solve for x
    x = 209,609,611.91/20,916.48
  6. Step 6: Final answer
    x = 10,021.27

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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.