Home / 39,803.32-54,927.22-21,898.16

Finding the Fourth Proportional to 39,803.32, 54,927.22 and 21,898.16

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Solution

The fourth proportional to 39,803.32, 54,927.22 and 21,898.16 is: 30,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,803.32 : 54,927.22 = 21,898.16 : x
  2. Step 2: Convert to fraction form
    39,803.32/54,927.22 = 21,898.16/x
  3. Step 3: Cross multiply
    39,803.32x = 54,927.22 × 21,898.16
  4. Step 4: Simplify right side
    39,803.32x = 1,202,805,051.92
  5. Step 5: Solve for x
    x = 1,202,805,051.92/39,803.32
  6. Step 6: Final answer
    x = 30,218.71

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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.