Home / 40,424.20-60,621.90-14,129.80

Finding the Fourth Proportional to 40,424.20, 60,621.90 and 14,129.80

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Solution

The fourth proportional to 40,424.20, 60,621.90 and 14,129.80 is: 21,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,424.20 : 60,621.90 = 14,129.80 : x
  2. Step 2: Convert to fraction form
    40,424.20/60,621.90 = 14,129.80/x
  3. Step 3: Cross multiply
    40,424.20x = 60,621.90 × 14,129.80
  4. Step 4: Simplify right side
    40,424.20x = 856,575,322.62
  5. Step 5: Solve for x
    x = 856,575,322.62/40,424.20
  6. Step 6: Final answer
    x = 21,189.67

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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.