Home / 36,434.88-50,270.08-20,518.40

Finding the Fourth Proportional to 36,434.88, 50,270.08 and 20,518.40

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Solution

The fourth proportional to 36,434.88, 50,270.08 and 20,518.40 is: 28,309.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,434.88 : 50,270.08 = 20,518.40 : x
  2. Step 2: Convert to fraction form
    36,434.88/50,270.08 = 20,518.40/x
  3. Step 3: Cross multiply
    36,434.88x = 50,270.08 × 20,518.40
  4. Step 4: Simplify right side
    36,434.88x = 1,031,461,609.47
  5. Step 5: Solve for x
    x = 1,031,461,609.47/36,434.88
  6. Step 6: Final answer
    x = 28,309.73

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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.