Home / 39,313.61-54,252.74-21,408.74

Finding the Fourth Proportional to 39,313.61, 54,252.74 and 21,408.74

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Solution

The fourth proportional to 39,313.61, 54,252.74 and 21,408.74 is: 29,544.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,313.61 : 54,252.74 = 21,408.74 : x
  2. Step 2: Convert to fraction form
    39,313.61/54,252.74 = 21,408.74/x
  3. Step 3: Cross multiply
    39,313.61x = 54,252.74 × 21,408.74
  4. Step 4: Simplify right side
    39,313.61x = 1,161,482,790.65
  5. Step 5: Solve for x
    x = 1,161,482,790.65/39,313.61
  6. Step 6: Final answer
    x = 29,544.04

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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.