Home / 23,981.60-35,972.40-21,831.20

Finding the Fourth Proportional to 23,981.60, 35,972.40 and 21,831.20

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Solution

The fourth proportional to 23,981.60, 35,972.40 and 21,831.20 is: 32,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,981.60 : 35,972.40 = 21,831.20 : x
  2. Step 2: Convert to fraction form
    23,981.60/35,972.40 = 21,831.20/x
  3. Step 3: Cross multiply
    23,981.60x = 35,972.40 × 21,831.20
  4. Step 4: Simplify right side
    23,981.60x = 785,320,658.88
  5. Step 5: Solve for x
    x = 785,320,658.88/23,981.60
  6. Step 6: Final answer
    x = 32,746.80

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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.