Home / 28,736.69-39,647.39-17,402.55

Finding the Fourth Proportional to 28,736.69, 39,647.39 and 17,402.55

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Solution

The fourth proportional to 28,736.69, 39,647.39 and 17,402.55 is: 24,009.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.69 : 39,647.39 = 17,402.55 : x
  2. Step 2: Convert to fraction form
    28,736.69/39,647.39 = 17,402.55/x
  3. Step 3: Cross multiply
    28,736.69x = 39,647.39 × 17,402.55
  4. Step 4: Simplify right side
    28,736.69x = 689,965,599.83
  5. Step 5: Solve for x
    x = 689,965,599.83/28,736.69
  6. Step 6: Final answer
    x = 24,009.92

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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.