Home / 31,312.62-43,226.19-19,383.75

Finding the Fourth Proportional to 31,312.62, 43,226.19 and 19,383.75

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Solution

The fourth proportional to 31,312.62, 43,226.19 and 19,383.75 is: 26,758.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.62 : 43,226.19 = 19,383.75 : x
  2. Step 2: Convert to fraction form
    31,312.62/43,226.19 = 19,383.75/x
  3. Step 3: Cross multiply
    31,312.62x = 43,226.19 × 19,383.75
  4. Step 4: Simplify right side
    31,312.62x = 837,885,660.41
  5. Step 5: Solve for x
    x = 837,885,660.41/31,312.62
  6. Step 6: Final answer
    x = 26,758.72

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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.