Home / 40,420.20-60,615.90-14,125.80

Finding the Fourth Proportional to 40,420.20, 60,615.90 and 14,125.80

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Solution

The fourth proportional to 40,420.20, 60,615.90 and 14,125.80 is: 21,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.20 : 60,615.90 = 14,125.80 : x
  2. Step 2: Convert to fraction form
    40,420.20/60,615.90 = 14,125.80/x
  3. Step 3: Cross multiply
    40,420.20x = 60,615.90 × 14,125.80
  4. Step 4: Simplify right side
    40,420.20x = 856,248,080.22
  5. Step 5: Solve for x
    x = 856,248,080.22/40,420.20
  6. Step 6: Final answer
    x = 21,183.67

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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.