Home / 31,864.88-43,984.47-19,289.63

Finding the Fourth Proportional to 31,864.88, 43,984.47 and 19,289.63

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Solution

The fourth proportional to 31,864.88, 43,984.47 and 19,289.63 is: 26,626.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.88 : 43,984.47 = 19,289.63 : x
  2. Step 2: Convert to fraction form
    31,864.88/43,984.47 = 19,289.63/x
  3. Step 3: Cross multiply
    31,864.88x = 43,984.47 × 19,289.63
  4. Step 4: Simplify right side
    31,864.88x = 848,443,932.12
  5. Step 5: Solve for x
    x = 848,443,932.12/31,864.88
  6. Step 6: Final answer
    x = 26,626.31

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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.