Home / 21,570.84-32,356.26-6,781.05

Finding the Fourth Proportional to 21,570.84, 32,356.26 and 6,781.05

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Solution

The fourth proportional to 21,570.84, 32,356.26 and 6,781.05 is: 10,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,570.84 : 32,356.26 = 6,781.05 : x
  2. Step 2: Convert to fraction form
    21,570.84/32,356.26 = 6,781.05/x
  3. Step 3: Cross multiply
    21,570.84x = 32,356.26 × 6,781.05
  4. Step 4: Simplify right side
    21,570.84x = 219,409,416.87
  5. Step 5: Solve for x
    x = 219,409,416.87/21,570.84
  6. Step 6: Final answer
    x = 10,171.58

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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.