Home / 28,813.13-39,735.69-19,751.66

Finding the Fourth Proportional to 28,813.13, 39,735.69 and 19,751.66

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Solution

The fourth proportional to 28,813.13, 39,735.69 and 19,751.66 is: 27,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.13 : 39,735.69 = 19,751.66 : x
  2. Step 2: Convert to fraction form
    28,813.13/39,735.69 = 19,751.66/x
  3. Step 3: Cross multiply
    28,813.13x = 39,735.69 × 19,751.66
  4. Step 4: Simplify right side
    28,813.13x = 784,845,838.75
  5. Step 5: Solve for x
    x = 784,845,838.75/28,813.13
  6. Step 6: Final answer
    x = 27,239.17

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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.