Home / 28,508.36-39,340.32-16,570.78

Finding the Fourth Proportional to 28,508.36, 39,340.32 and 16,570.78

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Solution

The fourth proportional to 28,508.36, 39,340.32 and 16,570.78 is: 22,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.36 : 39,340.32 = 16,570.78 : x
  2. Step 2: Convert to fraction form
    28,508.36/39,340.32 = 16,570.78/x
  3. Step 3: Cross multiply
    28,508.36x = 39,340.32 × 16,570.78
  4. Step 4: Simplify right side
    28,508.36x = 651,899,627.36
  5. Step 5: Solve for x
    x = 651,899,627.36/28,508.36
  6. Step 6: Final answer
    x = 22,866.97

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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.