Home / 36,434.70-50,278.05-20,520.09

Finding the Fourth Proportional to 36,434.70, 50,278.05 and 20,520.09

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Solution

The fourth proportional to 36,434.70, 50,278.05 and 20,520.09 is: 28,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,434.70 : 50,278.05 = 20,520.09 : x
  2. Step 2: Convert to fraction form
    36,434.70/50,278.05 = 20,520.09/x
  3. Step 3: Cross multiply
    36,434.70x = 50,278.05 × 20,520.09
  4. Step 4: Simplify right side
    36,434.70x = 1,031,710,111.02
  5. Step 5: Solve for x
    x = 1,031,710,111.02/36,434.70
  6. Step 6: Final answer
    x = 28,316.69

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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.