Home / 39,651.84-54,720-22,890.24

Finding the Fourth Proportional to 39,651.84, 54,720 and 22,890.24

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Solution

The fourth proportional to 39,651.84, 54,720 and 22,890.24 is: 31,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,651.84 : 54,720 = 22,890.24 : x
  2. Step 2: Convert to fraction form
    39,651.84/54,720 = 22,890.24/x
  3. Step 3: Cross multiply
    39,651.84x = 54,720 × 22,890.24
  4. Step 4: Simplify right side
    39,651.84x = 1,252,553,932.80
  5. Step 5: Solve for x
    x = 1,252,553,932.80/39,651.84
  6. Step 6: Final answer
    x = 31,588.80

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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.