Home / 31,621.79-43,647.26-18,202.52

Finding the Fourth Proportional to 31,621.79, 43,647.26 and 18,202.52

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Solution

The fourth proportional to 31,621.79, 43,647.26 and 18,202.52 is: 25,124.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.79 : 43,647.26 = 18,202.52 : x
  2. Step 2: Convert to fraction form
    31,621.79/43,647.26 = 18,202.52/x
  3. Step 3: Cross multiply
    31,621.79x = 43,647.26 × 18,202.52
  4. Step 4: Simplify right side
    31,621.79x = 794,490,141.20
  5. Step 5: Solve for x
    x = 794,490,141.20/31,621.79
  6. Step 6: Final answer
    x = 25,124.77

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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.