Home / 31,709.52-43,763.42-18,280.53

Finding the Fourth Proportional to 31,709.52, 43,763.42 and 18,280.53

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Solution

The fourth proportional to 31,709.52, 43,763.42 and 18,280.53 is: 25,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709.52 : 43,763.42 = 18,280.53 : x
  2. Step 2: Convert to fraction form
    31,709.52/43,763.42 = 18,280.53/x
  3. Step 3: Cross multiply
    31,709.52x = 43,763.42 × 18,280.53
  4. Step 4: Simplify right side
    31,709.52x = 800,018,557.91
  5. Step 5: Solve for x
    x = 800,018,557.91/31,709.52
  6. Step 6: Final answer
    x = 25,229.60

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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.