Home / 39,341.90-54,360.87-31,449.26

Finding the Fourth Proportional to 39,341.90, 54,360.87 and 31,449.26

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Solution

The fourth proportional to 39,341.90, 54,360.87 and 31,449.26 is: 43,455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341.90 : 54,360.87 = 31,449.26 : x
  2. Step 2: Convert to fraction form
    39,341.90/54,360.87 = 31,449.26/x
  3. Step 3: Cross multiply
    39,341.90x = 54,360.87 × 31,449.26
  4. Step 4: Simplify right side
    39,341.90x = 1,709,609,134.46
  5. Step 5: Solve for x
    x = 1,709,609,134.46/39,341.90
  6. Step 6: Final answer
    x = 43,455.17

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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.