Home / 31,580.16-43,579.08-18,141.90

Finding the Fourth Proportional to 31,580.16, 43,579.08 and 18,141.90

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Solution

The fourth proportional to 31,580.16, 43,579.08 and 18,141.90 is: 25,034.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,580.16 : 43,579.08 = 18,141.90 : x
  2. Step 2: Convert to fraction form
    31,580.16/43,579.08 = 18,141.90/x
  3. Step 3: Cross multiply
    31,580.16x = 43,579.08 × 18,141.90
  4. Step 4: Simplify right side
    31,580.16x = 790,607,311.45
  5. Step 5: Solve for x
    x = 790,607,311.45/31,580.16
  6. Step 6: Final answer
    x = 25,034.94

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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.