Home / 21,621.25-32,433.63-6,831.01

Finding the Fourth Proportional to 21,621.25, 32,433.63 and 6,831.01

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Solution

The fourth proportional to 21,621.25, 32,433.63 and 6,831.01 is: 10,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.25 : 32,433.63 = 6,831.01 : x
  2. Step 2: Convert to fraction form
    21,621.25/32,433.63 = 6,831.01/x
  3. Step 3: Cross multiply
    21,621.25x = 32,433.63 × 6,831.01
  4. Step 4: Simplify right side
    21,621.25x = 221,554,450.87
  5. Step 5: Solve for x
    x = 221,554,450.87/21,621.25
  6. Step 6: Final answer
    x = 10,247.07

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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.