Home / 28,747.78-39,655.73-17,259.75

Finding the Fourth Proportional to 28,747.78, 39,655.73 and 17,259.75

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Solution

The fourth proportional to 28,747.78, 39,655.73 and 17,259.75 is: 23,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.78 : 39,655.73 = 17,259.75 : x
  2. Step 2: Convert to fraction form
    28,747.78/39,655.73 = 17,259.75/x
  3. Step 3: Cross multiply
    28,747.78x = 39,655.73 × 17,259.75
  4. Step 4: Simplify right side
    28,747.78x = 684,448,029.02
  5. Step 5: Solve for x
    x = 684,448,029.02/28,747.78
  6. Step 6: Final answer
    x = 23,808.73

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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.