Home / 28,831.35-39,787.20-16,256.10

Finding the Fourth Proportional to 28,831.35, 39,787.20 and 16,256.10

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Solution

The fourth proportional to 28,831.35, 39,787.20 and 16,256.10 is: 22,433.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.35 : 39,787.20 = 16,256.10 : x
  2. Step 2: Convert to fraction form
    28,831.35/39,787.20 = 16,256.10/x
  3. Step 3: Cross multiply
    28,831.35x = 39,787.20 × 16,256.10
  4. Step 4: Simplify right side
    28,831.35x = 646,784,701.92
  5. Step 5: Solve for x
    x = 646,784,701.92/28,831.35
  6. Step 6: Final answer
    x = 22,433.38

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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.