Home / 26,831.20-40,246.80-16,981.60

Finding the Fourth Proportional to 26,831.20, 40,246.80 and 16,981.60

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Solution

The fourth proportional to 26,831.20, 40,246.80 and 16,981.60 is: 25,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,831.20 : 40,246.80 = 16,981.60 : x
  2. Step 2: Convert to fraction form
    26,831.20/40,246.80 = 16,981.60/x
  3. Step 3: Cross multiply
    26,831.20x = 40,246.80 × 16,981.60
  4. Step 4: Simplify right side
    26,831.20x = 683,455,058.88
  5. Step 5: Solve for x
    x = 683,455,058.88/26,831.20
  6. Step 6: Final answer
    x = 25,472.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.