Home / 39,335.90-54,352.59-31,443.26

Finding the Fourth Proportional to 39,335.90, 54,352.59 and 31,443.26

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Solution

The fourth proportional to 39,335.90, 54,352.59 and 31,443.26 is: 43,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,335.90 : 54,352.59 = 31,443.26 : x
  2. Step 2: Convert to fraction form
    39,335.90/54,352.59 = 31,443.26/x
  3. Step 3: Cross multiply
    39,335.90x = 54,352.59 × 31,443.26
  4. Step 4: Simplify right side
    39,335.90x = 1,709,022,619.04
  5. Step 5: Solve for x
    x = 1,709,022,619.04/39,335.90
  6. Step 6: Final answer
    x = 43,446.89

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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.