Home / 31,589.64-43,574.49-18,834.45

Finding the Fourth Proportional to 31,589.64, 43,574.49 and 18,834.45

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Solution

The fourth proportional to 31,589.64, 43,574.49 and 18,834.45 is: 25,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.64 : 43,574.49 = 18,834.45 : x
  2. Step 2: Convert to fraction form
    31,589.64/43,574.49 = 18,834.45/x
  3. Step 3: Cross multiply
    31,589.64x = 43,574.49 × 18,834.45
  4. Step 4: Simplify right side
    31,589.64x = 820,701,553.18
  5. Step 5: Solve for x
    x = 820,701,553.18/31,589.64
  6. Step 6: Final answer
    x = 25,980.09

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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.