Home / 38,288.16-57,427.20-13,322.88

Finding the Fourth Proportional to 38,288.16, 57,427.20 and 13,322.88

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Solution

The fourth proportional to 38,288.16, 57,427.20 and 13,322.88 is: 19,982.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,288.16 : 57,427.20 = 13,322.88 : x
  2. Step 2: Convert to fraction form
    38,288.16/57,427.20 = 13,322.88/x
  3. Step 3: Cross multiply
    38,288.16x = 57,427.20 × 13,322.88
  4. Step 4: Simplify right side
    38,288.16x = 765,095,694.34
  5. Step 5: Solve for x
    x = 765,095,694.34/38,288.16
  6. Step 6: Final answer
    x = 19,982.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.