Home / 39,068.12-53,914.12-21,163.08

Finding the Fourth Proportional to 39,068.12, 53,914.12 and 21,163.08

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Solution

The fourth proportional to 39,068.12, 53,914.12 and 21,163.08 is: 29,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,068.12 : 53,914.12 = 21,163.08 : x
  2. Step 2: Convert to fraction form
    39,068.12/53,914.12 = 21,163.08/x
  3. Step 3: Cross multiply
    39,068.12x = 53,914.12 × 21,163.08
  4. Step 4: Simplify right side
    39,068.12x = 1,140,988,834.69
  5. Step 5: Solve for x
    x = 1,140,988,834.69/39,068.12
  6. Step 6: Final answer
    x = 29,205.11

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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.