Home / 28,679.84-39,578.64-16,104.32

Finding the Fourth Proportional to 28,679.84, 39,578.64 and 16,104.32

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Solution

The fourth proportional to 28,679.84, 39,578.64 and 16,104.32 is: 22,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679.84 : 39,578.64 = 16,104.32 : x
  2. Step 2: Convert to fraction form
    28,679.84/39,578.64 = 16,104.32/x
  3. Step 3: Cross multiply
    28,679.84x = 39,578.64 × 16,104.32
  4. Step 4: Simplify right side
    28,679.84x = 637,387,083.72
  5. Step 5: Solve for x
    x = 637,387,083.72/28,679.84
  6. Step 6: Final answer
    x = 22,224.22

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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.