Home / 40,420.69-60,650.28-18,240.87

Finding the Fourth Proportional to 40,420.69, 60,650.28 and 18,240.87

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Solution

The fourth proportional to 40,420.69, 60,650.28 and 18,240.87 is: 27,369.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.69 : 60,650.28 = 18,240.87 : x
  2. Step 2: Convert to fraction form
    40,420.69/60,650.28 = 18,240.87/x
  3. Step 3: Cross multiply
    40,420.69x = 60,650.28 × 18,240.87
  4. Step 4: Simplify right side
    40,420.69x = 1,106,313,872.94
  5. Step 5: Solve for x
    x = 1,106,313,872.94/40,420.69
  6. Step 6: Final answer
    x = 27,369.99

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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.