Home / 40,842.10-61,234.32-15,861.34

Finding the Fourth Proportional to 40,842.10, 61,234.32 and 15,861.34

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Solution

The fourth proportional to 40,842.10, 61,234.32 and 15,861.34 is: 23,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,842.10 : 61,234.32 = 15,861.34 : x
  2. Step 2: Convert to fraction form
    40,842.10/61,234.32 = 15,861.34/x
  3. Step 3: Cross multiply
    40,842.10x = 61,234.32 × 15,861.34
  4. Step 4: Simplify right side
    40,842.10x = 971,258,369.19
  5. Step 5: Solve for x
    x = 971,258,369.19/40,842.10
  6. Step 6: Final answer
    x = 23,780.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.