Home / 29,341.81-40,491.33-16,420.90

Finding the Fourth Proportional to 29,341.81, 40,491.33 and 16,420.90

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Solution

The fourth proportional to 29,341.81, 40,491.33 and 16,420.90 is: 22,660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,341.81 : 40,491.33 = 16,420.90 : x
  2. Step 2: Convert to fraction form
    29,341.81/40,491.33 = 16,420.90/x
  3. Step 3: Cross multiply
    29,341.81x = 40,491.33 × 16,420.90
  4. Step 4: Simplify right side
    29,341.81x = 664,904,080.80
  5. Step 5: Solve for x
    x = 664,904,080.80/29,341.81
  6. Step 6: Final answer
    x = 22,660.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.