Home / 22,626.72-31,213.08-13,669.20

Finding the Fourth Proportional to 22,626.72, 31,213.08 and 13,669.20

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Solution

The fourth proportional to 22,626.72, 31,213.08 and 13,669.20 is: 18,856.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,626.72 : 31,213.08 = 13,669.20 : x
  2. Step 2: Convert to fraction form
    22,626.72/31,213.08 = 13,669.20/x
  3. Step 3: Cross multiply
    22,626.72x = 31,213.08 × 13,669.20
  4. Step 4: Simplify right side
    22,626.72x = 426,657,833.14
  5. Step 5: Solve for x
    x = 426,657,833.14/22,626.72
  6. Step 6: Final answer
    x = 18,856.37

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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.