Home / 22,579.68-31,152.80-13,146.48

Finding the Fourth Proportional to 22,579.68, 31,152.80 and 13,146.48

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Solution

The fourth proportional to 22,579.68, 31,152.80 and 13,146.48 is: 18,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.68 : 31,152.80 = 13,146.48 : x
  2. Step 2: Convert to fraction form
    22,579.68/31,152.80 = 13,146.48/x
  3. Step 3: Cross multiply
    22,579.68x = 31,152.80 × 13,146.48
  4. Step 4: Simplify right side
    22,579.68x = 409,549,662.14
  5. Step 5: Solve for x
    x = 409,549,662.14/22,579.68
  6. Step 6: Final answer
    x = 18,137.97

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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.