Home / 36,721.95-50,676.29-20,806.40

Finding the Fourth Proportional to 36,721.95, 50,676.29 and 20,806.40

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Solution

The fourth proportional to 36,721.95, 50,676.29 and 20,806.40 is: 28,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,721.95 : 50,676.29 = 20,806.40 : x
  2. Step 2: Convert to fraction form
    36,721.95/50,676.29 = 20,806.40/x
  3. Step 3: Cross multiply
    36,721.95x = 50,676.29 × 20,806.40
  4. Step 4: Simplify right side
    36,721.95x = 1,054,391,234.51
  5. Step 5: Solve for x
    x = 1,054,391,234.51/36,721.95
  6. Step 6: Final answer
    x = 28,712.83

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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.