Home / 40,321.20-60,490.86-13,665.67

Finding the Fourth Proportional to 40,321.20, 60,490.86 and 13,665.67

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Solution

The fourth proportional to 40,321.20, 60,490.86 and 13,665.67 is: 20,501.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,321.20 : 60,490.86 = 13,665.67 : x
  2. Step 2: Convert to fraction form
    40,321.20/60,490.86 = 13,665.67/x
  3. Step 3: Cross multiply
    40,321.20x = 60,490.86 × 13,665.67
  4. Step 4: Simplify right side
    40,321.20x = 826,648,130.78
  5. Step 5: Solve for x
    x = 826,648,130.78/40,321.20
  6. Step 6: Final answer
    x = 20,501.58

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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.