Home / 31,370.36-43,299.50-19,426.91

Finding the Fourth Proportional to 31,370.36, 43,299.50 and 19,426.91

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Solution

The fourth proportional to 31,370.36, 43,299.50 and 19,426.91 is: 26,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,370.36 : 43,299.50 = 19,426.91 : x
  2. Step 2: Convert to fraction form
    31,370.36/43,299.50 = 19,426.91/x
  3. Step 3: Cross multiply
    31,370.36x = 43,299.50 × 19,426.91
  4. Step 4: Simplify right side
    31,370.36x = 841,175,175.91
  5. Step 5: Solve for x
    x = 841,175,175.91/31,370.36
  6. Step 6: Final answer
    x = 26,814.33

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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.