Home / 31,579.03-43,579.09-17,431.86

Finding the Fourth Proportional to 31,579.03, 43,579.09 and 17,431.86

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Solution

The fourth proportional to 31,579.03, 43,579.09 and 17,431.86 is: 24,055.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579.03 : 43,579.09 = 17,431.86 : x
  2. Step 2: Convert to fraction form
    31,579.03/43,579.09 = 17,431.86/x
  3. Step 3: Cross multiply
    31,579.03x = 43,579.09 × 17,431.86
  4. Step 4: Simplify right side
    31,579.03x = 759,664,595.81
  5. Step 5: Solve for x
    x = 759,664,595.81/31,579.03
  6. Step 6: Final answer
    x = 24,055.98

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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.