Home / 39,306.87-54,238.41-22,308.21

Finding the Fourth Proportional to 39,306.87, 54,238.41 and 22,308.21

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Solution

The fourth proportional to 39,306.87, 54,238.41 and 22,308.21 is: 30,782.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,306.87 : 54,238.41 = 22,308.21 : x
  2. Step 2: Convert to fraction form
    39,306.87/54,238.41 = 22,308.21/x
  3. Step 3: Cross multiply
    39,306.87x = 54,238.41 × 22,308.21
  4. Step 4: Simplify right side
    39,306.87x = 1,209,961,840.35
  5. Step 5: Solve for x
    x = 1,209,961,840.35/39,306.87
  6. Step 6: Final answer
    x = 30,782.45

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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.