Home / 39,334.37-54,281.13-21,429.32

Finding the Fourth Proportional to 39,334.37, 54,281.13 and 21,429.32

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Solution

The fourth proportional to 39,334.37, 54,281.13 and 21,429.32 is: 29,572.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,334.37 : 54,281.13 = 21,429.32 : x
  2. Step 2: Convert to fraction form
    39,334.37/54,281.13 = 21,429.32/x
  3. Step 3: Cross multiply
    39,334.37x = 54,281.13 × 21,429.32
  4. Step 4: Simplify right side
    39,334.37x = 1,163,207,704.73
  5. Step 5: Solve for x
    x = 1,163,207,704.73/39,334.37
  6. Step 6: Final answer
    x = 29,572.30

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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.