Home / 39,260.99-54,178.61-21,355.99

Finding the Fourth Proportional to 39,260.99, 54,178.61 and 21,355.99

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Solution

The fourth proportional to 39,260.99, 54,178.61 and 21,355.99 is: 29,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,260.99 : 54,178.61 = 21,355.99 : x
  2. Step 2: Convert to fraction form
    39,260.99/54,178.61 = 21,355.99/x
  3. Step 3: Cross multiply
    39,260.99x = 54,178.61 × 21,355.99
  4. Step 4: Simplify right side
    39,260.99x = 1,157,037,611.15
  5. Step 5: Solve for x
    x = 1,157,037,611.15/39,260.99
  6. Step 6: Final answer
    x = 29,470.41

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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.