Home / 22,328.82-30,812.76-13,381.29

Finding the Fourth Proportional to 22,328.82, 30,812.76 and 13,381.29

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Solution

The fourth proportional to 22,328.82, 30,812.76 and 13,381.29 is: 18,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,328.82 : 30,812.76 = 13,381.29 : x
  2. Step 2: Convert to fraction form
    22,328.82/30,812.76 = 13,381.29/x
  3. Step 3: Cross multiply
    22,328.82x = 30,812.76 × 13,381.29
  4. Step 4: Simplify right side
    22,328.82x = 412,314,477.26
  5. Step 5: Solve for x
    x = 412,314,477.26/22,328.82
  6. Step 6: Final answer
    x = 18,465.57

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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.