Home / 31,695.91-43,737.32-18,946.57

Finding the Fourth Proportional to 31,695.91, 43,737.32 and 18,946.57

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Solution

The fourth proportional to 31,695.91, 43,737.32 and 18,946.57 is: 26,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,695.91 : 43,737.32 = 18,946.57 : x
  2. Step 2: Convert to fraction form
    31,695.91/43,737.32 = 18,946.57/x
  3. Step 3: Cross multiply
    31,695.91x = 43,737.32 × 18,946.57
  4. Step 4: Simplify right side
    31,695.91x = 828,672,194.99
  5. Step 5: Solve for x
    x = 828,672,194.99/31,695.91
  6. Step 6: Final answer
    x = 26,144.45

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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.