Home / 21,905.84-32,858.76-14,120.12

Finding the Fourth Proportional to 21,905.84, 32,858.76 and 14,120.12

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Solution

The fourth proportional to 21,905.84, 32,858.76 and 14,120.12 is: 21,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.84 : 32,858.76 = 14,120.12 : x
  2. Step 2: Convert to fraction form
    21,905.84/32,858.76 = 14,120.12/x
  3. Step 3: Cross multiply
    21,905.84x = 32,858.76 × 14,120.12
  4. Step 4: Simplify right side
    21,905.84x = 463,969,769.35
  5. Step 5: Solve for x
    x = 463,969,769.35/21,905.84
  6. Step 6: Final answer
    x = 21,180.18

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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.