Home / 28,831.40-39,787.62-16,901.80

Finding the Fourth Proportional to 28,831.40, 39,787.62 and 16,901.80

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Solution

The fourth proportional to 28,831.40, 39,787.62 and 16,901.80 is: 23,324.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.40 : 39,787.62 = 16,901.80 : x
  2. Step 2: Convert to fraction form
    28,831.40/39,787.62 = 16,901.80/x
  3. Step 3: Cross multiply
    28,831.40x = 39,787.62 × 16,901.80
  4. Step 4: Simplify right side
    28,831.40x = 672,482,395.72
  5. Step 5: Solve for x
    x = 672,482,395.72/28,831.40
  6. Step 6: Final answer
    x = 23,324.65

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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.