Home / 39,334.68-54,281.61-21,430.44

Finding the Fourth Proportional to 39,334.68, 54,281.61 and 21,430.44

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Solution

The fourth proportional to 39,334.68, 54,281.61 and 21,430.44 is: 29,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,334.68 : 54,281.61 = 21,430.44 : x
  2. Step 2: Convert to fraction form
    39,334.68/54,281.61 = 21,430.44/x
  3. Step 3: Cross multiply
    39,334.68x = 54,281.61 × 21,430.44
  4. Step 4: Simplify right side
    39,334.68x = 1,163,278,786.21
  5. Step 5: Solve for x
    x = 1,163,278,786.21/39,334.68
  6. Step 6: Final answer
    x = 29,573.87

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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.