Home / 21,269.23-29,350.15-11,707.29

Finding the Fourth Proportional to 21,269.23, 29,350.15 and 11,707.29

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Solution

The fourth proportional to 21,269.23, 29,350.15 and 11,707.29 is: 16,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.23 : 29,350.15 = 11,707.29 : x
  2. Step 2: Convert to fraction form
    21,269.23/29,350.15 = 11,707.29/x
  3. Step 3: Cross multiply
    21,269.23x = 29,350.15 × 11,707.29
  4. Step 4: Simplify right side
    21,269.23x = 343,610,688.33
  5. Step 5: Solve for x
    x = 343,610,688.33/21,269.23
  6. Step 6: Final answer
    x = 16,155.30

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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.