Home / 31,359.40-43,296.24-19,435.39

Finding the Fourth Proportional to 31,359.40, 43,296.24 and 19,435.39

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Solution

The fourth proportional to 31,359.40, 43,296.24 and 19,435.39 is: 26,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,359.40 : 43,296.24 = 19,435.39 : x
  2. Step 2: Convert to fraction form
    31,359.40/43,296.24 = 19,435.39/x
  3. Step 3: Cross multiply
    31,359.40x = 43,296.24 × 19,435.39
  4. Step 4: Simplify right side
    31,359.40x = 841,479,309.93
  5. Step 5: Solve for x
    x = 841,479,309.93/31,359.40
  6. Step 6: Final answer
    x = 26,833.40

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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.