Home / 39,356.07-54,311.40-22,360.35

Finding the Fourth Proportional to 39,356.07, 54,311.40 and 22,360.35

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Solution

The fourth proportional to 39,356.07, 54,311.40 and 22,360.35 is: 30,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.07 : 54,311.40 = 22,360.35 : x
  2. Step 2: Convert to fraction form
    39,356.07/54,311.40 = 22,360.35/x
  3. Step 3: Cross multiply
    39,356.07x = 54,311.40 × 22,360.35
  4. Step 4: Simplify right side
    39,356.07x = 1,214,421,912.99
  5. Step 5: Solve for x
    x = 1,214,421,912.99/39,356.07
  6. Step 6: Final answer
    x = 30,857.30

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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.