Home / 31,509.56-43,479.24-18,079.04

Finding the Fourth Proportional to 31,509.56, 43,479.24 and 18,079.04

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Solution

The fourth proportional to 31,509.56, 43,479.24 and 18,079.04 is: 24,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,509.56 : 43,479.24 = 18,079.04 : x
  2. Step 2: Convert to fraction form
    31,509.56/43,479.24 = 18,079.04/x
  3. Step 3: Cross multiply
    31,509.56x = 43,479.24 × 18,079.04
  4. Step 4: Simplify right side
    31,509.56x = 786,062,919.13
  5. Step 5: Solve for x
    x = 786,062,919.13/31,509.56
  6. Step 6: Final answer
    x = 24,946.81

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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.