Home / 28,578.59-39,439.10-16,637.57

Finding the Fourth Proportional to 28,578.59, 39,439.10 and 16,637.57

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Solution

The fourth proportional to 28,578.59, 39,439.10 and 16,637.57 is: 22,960.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.59 : 39,439.10 = 16,637.57 : x
  2. Step 2: Convert to fraction form
    28,578.59/39,439.10 = 16,637.57/x
  3. Step 3: Cross multiply
    28,578.59x = 39,439.10 × 16,637.57
  4. Step 4: Simplify right side
    28,578.59x = 656,170,506.60
  5. Step 5: Solve for x
    x = 656,170,506.60/28,578.59
  6. Step 6: Final answer
    x = 22,960.22

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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.