Home / 42,661.20-64,016.10-16,384.80

Finding the Fourth Proportional to 42,661.20, 64,016.10 and 16,384.80

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Solution

The fourth proportional to 42,661.20, 64,016.10 and 16,384.80 is: 24,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,661.20 : 64,016.10 = 16,384.80 : x
  2. Step 2: Convert to fraction form
    42,661.20/64,016.10 = 16,384.80/x
  3. Step 3: Cross multiply
    42,661.20x = 64,016.10 × 16,384.80
  4. Step 4: Simplify right side
    42,661.20x = 1,048,890,995.28
  5. Step 5: Solve for x
    x = 1,048,890,995.28/42,661.20
  6. Step 6: Final answer
    x = 24,586.53

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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.