Home / 31,833.32-43,943.45-21,487.31

Finding the Fourth Proportional to 31,833.32, 43,943.45 and 21,487.31

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Solution

The fourth proportional to 31,833.32, 43,943.45 and 21,487.31 is: 29,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,833.32 : 43,943.45 = 21,487.31 : x
  2. Step 2: Convert to fraction form
    31,833.32/43,943.45 = 21,487.31/x
  3. Step 3: Cross multiply
    31,833.32x = 43,943.45 × 21,487.31
  4. Step 4: Simplify right side
    31,833.32x = 944,226,205.47
  5. Step 5: Solve for x
    x = 944,226,205.47/31,833.32
  6. Step 6: Final answer
    x = 29,661.57

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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.