Home / 28,111.60-38,792.96-16,176.78

Finding the Fourth Proportional to 28,111.60, 38,792.96 and 16,176.78

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Solution

The fourth proportional to 28,111.60, 38,792.96 and 16,176.78 is: 22,323.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111.60 : 38,792.96 = 16,176.78 : x
  2. Step 2: Convert to fraction form
    28,111.60/38,792.96 = 16,176.78/x
  3. Step 3: Cross multiply
    28,111.60x = 38,792.96 × 16,176.78
  4. Step 4: Simplify right side
    28,111.60x = 627,545,179.47
  5. Step 5: Solve for x
    x = 627,545,179.47/28,111.60
  6. Step 6: Final answer
    x = 22,323.35

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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.