Home / 36,979.28-51,031.32-20,212.40

Finding the Fourth Proportional to 36,979.28, 51,031.32 and 20,212.40

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Solution

The fourth proportional to 36,979.28, 51,031.32 and 20,212.40 is: 27,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,979.28 : 51,031.32 = 20,212.40 : x
  2. Step 2: Convert to fraction form
    36,979.28/51,031.32 = 20,212.40/x
  3. Step 3: Cross multiply
    36,979.28x = 51,031.32 × 20,212.40
  4. Step 4: Simplify right side
    36,979.28x = 1,031,465,452.37
  5. Step 5: Solve for x
    x = 1,031,465,452.37/36,979.28
  6. Step 6: Final answer
    x = 27,893.06

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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.