Home / 21,243.24-29,316.42-11,683.86

Finding the Fourth Proportional to 21,243.24, 29,316.42 and 11,683.86

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Solution

The fourth proportional to 21,243.24, 29,316.42 and 11,683.86 is: 16,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243.24 : 29,316.42 = 11,683.86 : x
  2. Step 2: Convert to fraction form
    21,243.24/29,316.42 = 11,683.86/x
  3. Step 3: Cross multiply
    21,243.24x = 29,316.42 × 11,683.86
  4. Step 4: Simplify right side
    21,243.24x = 342,528,946.98
  5. Step 5: Solve for x
    x = 342,528,946.98/21,243.24
  6. Step 6: Final answer
    x = 16,124.14

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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.