Home / 31,575.64-43,579.18-19,642.83

Finding the Fourth Proportional to 31,575.64, 43,579.18 and 19,642.83

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Solution

The fourth proportional to 31,575.64, 43,579.18 and 19,642.83 is: 27,110.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.64 : 43,579.18 = 19,642.83 : x
  2. Step 2: Convert to fraction form
    31,575.64/43,579.18 = 19,642.83/x
  3. Step 3: Cross multiply
    31,575.64x = 43,579.18 × 19,642.83
  4. Step 4: Simplify right side
    31,575.64x = 856,018,424.28
  5. Step 5: Solve for x
    x = 856,018,424.28/31,575.64
  6. Step 6: Final answer
    x = 27,110.09

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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.