Home / 39,317.80-54,255-23,399.68

Finding the Fourth Proportional to 39,317.80, 54,255 and 23,399.68

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Solution

The fourth proportional to 39,317.80, 54,255 and 23,399.68 is: 32,289.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,317.80 : 54,255 = 23,399.68 : x
  2. Step 2: Convert to fraction form
    39,317.80/54,255 = 23,399.68/x
  3. Step 3: Cross multiply
    39,317.80x = 54,255 × 23,399.68
  4. Step 4: Simplify right side
    39,317.80x = 1,269,549,638.40
  5. Step 5: Solve for x
    x = 1,269,549,638.40/39,317.80
  6. Step 6: Final answer
    x = 32,289.44

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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.