Home / 31,579.04-43,581.36-18,153.56

Finding the Fourth Proportional to 31,579.04, 43,581.36 and 18,153.56

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Solution

The fourth proportional to 31,579.04, 43,581.36 and 18,153.56 is: 25,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579.04 : 43,581.36 = 18,153.56 : x
  2. Step 2: Convert to fraction form
    31,579.04/43,581.36 = 18,153.56/x
  3. Step 3: Cross multiply
    31,579.04x = 43,581.36 × 18,153.56
  4. Step 4: Simplify right side
    31,579.04x = 791,156,833.64
  5. Step 5: Solve for x
    x = 791,156,833.64/31,579.04
  6. Step 6: Final answer
    x = 25,053.23

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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.