Home / 28,961.60-39,966.44-16,214.80

Finding the Fourth Proportional to 28,961.60, 39,966.44 and 16,214.80

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Solution

The fourth proportional to 28,961.60, 39,966.44 and 16,214.80 is: 22,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.60 : 39,966.44 = 16,214.80 : x
  2. Step 2: Convert to fraction form
    28,961.60/39,966.44 = 16,214.80/x
  3. Step 3: Cross multiply
    28,961.60x = 39,966.44 × 16,214.80
  4. Step 4: Simplify right side
    28,961.60x = 648,047,831.31
  5. Step 5: Solve for x
    x = 648,047,831.31/28,961.60
  6. Step 6: Final answer
    x = 22,376.11

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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.