Home / 31,656.91-43,685.08-18,225.29

Finding the Fourth Proportional to 31,656.91, 43,685.08 and 18,225.29

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Solution

The fourth proportional to 31,656.91, 43,685.08 and 18,225.29 is: 25,150.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,656.91 : 43,685.08 = 18,225.29 : x
  2. Step 2: Convert to fraction form
    31,656.91/43,685.08 = 18,225.29/x
  3. Step 3: Cross multiply
    31,656.91x = 43,685.08 × 18,225.29
  4. Step 4: Simplify right side
    31,656.91x = 796,173,251.67
  5. Step 5: Solve for x
    x = 796,173,251.67/31,656.91
  6. Step 6: Final answer
    x = 25,150.06

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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.