Home / 28,831.60-39,787.80-16,084.36

Finding the Fourth Proportional to 28,831.60, 39,787.80 and 16,084.36

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Solution

The fourth proportional to 28,831.60, 39,787.80 and 16,084.36 is: 22,196.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.60 : 39,787.80 = 16,084.36 : x
  2. Step 2: Convert to fraction form
    28,831.60/39,787.80 = 16,084.36/x
  3. Step 3: Cross multiply
    28,831.60x = 39,787.80 × 16,084.36
  4. Step 4: Simplify right side
    28,831.60x = 639,961,298.81
  5. Step 5: Solve for x
    x = 639,961,298.81/28,831.60
  6. Step 6: Final answer
    x = 22,196.52

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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.