Home / 39,065.08-53,905.94-21,834.22

Finding the Fourth Proportional to 39,065.08, 53,905.94 and 21,834.22

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Solution

The fourth proportional to 39,065.08, 53,905.94 and 21,834.22 is: 30,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,065.08 : 53,905.94 = 21,834.22 : x
  2. Step 2: Convert to fraction form
    39,065.08/53,905.94 = 21,834.22/x
  3. Step 3: Cross multiply
    39,065.08x = 53,905.94 × 21,834.22
  4. Step 4: Simplify right side
    39,065.08x = 1,176,993,938.32
  5. Step 5: Solve for x
    x = 1,176,993,938.32/39,065.08
  6. Step 6: Final answer
    x = 30,129.06

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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.