Home / 31,489.08-43,429.10-22,981.64

Finding the Fourth Proportional to 31,489.08, 43,429.10 and 22,981.64

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Solution

The fourth proportional to 31,489.08, 43,429.10 and 22,981.64 is: 31,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.08 : 43,429.10 = 22,981.64 : x
  2. Step 2: Convert to fraction form
    31,489.08/43,429.10 = 22,981.64/x
  3. Step 3: Cross multiply
    31,489.08x = 43,429.10 × 22,981.64
  4. Step 4: Simplify right side
    31,489.08x = 998,071,941.72
  5. Step 5: Solve for x
    x = 998,071,941.72/31,489.08
  6. Step 6: Final answer
    x = 31,695.81

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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.