Home / 38,021.36-57,031.32-10,319.60

Finding the Fourth Proportional to 38,021.36, 57,031.32 and 10,319.60

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Solution

The fourth proportional to 38,021.36, 57,031.32 and 10,319.60 is: 15,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,021.36 : 57,031.32 = 10,319.60 : x
  2. Step 2: Convert to fraction form
    38,021.36/57,031.32 = 10,319.60/x
  3. Step 3: Cross multiply
    38,021.36x = 57,031.32 × 10,319.60
  4. Step 4: Simplify right side
    38,021.36x = 588,540,409.87
  5. Step 5: Solve for x
    x = 588,540,409.87/38,021.36
  6. Step 6: Final answer
    x = 15,479.20

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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.