Home / 31,802.52-43,889.52-18,374.36

Finding the Fourth Proportional to 31,802.52, 43,889.52 and 18,374.36

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Solution

The fourth proportional to 31,802.52, 43,889.52 and 18,374.36 is: 25,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,802.52 : 43,889.52 = 18,374.36 : x
  2. Step 2: Convert to fraction form
    31,802.52/43,889.52 = 18,374.36/x
  3. Step 3: Cross multiply
    31,802.52x = 43,889.52 × 18,374.36
  4. Step 4: Simplify right side
    31,802.52x = 806,441,840.71
  5. Step 5: Solve for x
    x = 806,441,840.71/31,802.52
  6. Step 6: Final answer
    x = 25,357.80

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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.