Home / 31,590.92-43,579.72-18,835.10

Finding the Fourth Proportional to 31,590.92, 43,579.72 and 18,835.10

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Solution

The fourth proportional to 31,590.92, 43,579.72 and 18,835.10 is: 25,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.92 : 43,579.72 = 18,835.10 : x
  2. Step 2: Convert to fraction form
    31,590.92/43,579.72 = 18,835.10/x
  3. Step 3: Cross multiply
    31,590.92x = 43,579.72 × 18,835.10
  4. Step 4: Simplify right side
    31,590.92x = 820,828,446.03
  5. Step 5: Solve for x
    x = 820,828,446.03/31,590.92
  6. Step 6: Final answer
    x = 25,983.05

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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.