Home / 21,151.53-31,722.84-6,356.07

Finding the Fourth Proportional to 21,151.53, 31,722.84 and 6,356.07

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Solution

The fourth proportional to 21,151.53, 31,722.84 and 6,356.07 is: 9,532.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,151.53 : 31,722.84 = 6,356.07 : x
  2. Step 2: Convert to fraction form
    21,151.53/31,722.84 = 6,356.07/x
  3. Step 3: Cross multiply
    21,151.53x = 31,722.84 × 6,356.07
  4. Step 4: Simplify right side
    21,151.53x = 201,632,591.64
  5. Step 5: Solve for x
    x = 201,632,591.64/21,151.53
  6. Step 6: Final answer
    x = 9,532.77

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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.