Home / 31,136.96-42,947.68-18,552

Finding the Fourth Proportional to 31,136.96, 42,947.68 and 18,552

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Solution

The fourth proportional to 31,136.96, 42,947.68 and 18,552 is: 25,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136.96 : 42,947.68 = 18,552 : x
  2. Step 2: Convert to fraction form
    31,136.96/42,947.68 = 18,552/x
  3. Step 3: Cross multiply
    31,136.96x = 42,947.68 × 18,552
  4. Step 4: Simplify right side
    31,136.96x = 796,765,359.36
  5. Step 5: Solve for x
    x = 796,765,359.36/31,136.96
  6. Step 6: Final answer
    x = 25,589.05

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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.