Home / 36,705.18-50,652.30-21,390.76

Finding the Fourth Proportional to 36,705.18, 50,652.30 and 21,390.76

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Solution

The fourth proportional to 36,705.18, 50,652.30 and 21,390.76 is: 29,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,705.18 : 50,652.30 = 21,390.76 : x
  2. Step 2: Convert to fraction form
    36,705.18/50,652.30 = 21,390.76/x
  3. Step 3: Cross multiply
    36,705.18x = 50,652.30 × 21,390.76
  4. Step 4: Simplify right side
    36,705.18x = 1,083,490,992.96
  5. Step 5: Solve for x
    x = 1,083,490,992.96/36,705.18
  6. Step 6: Final answer
    x = 29,518.75

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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.