Home / 15,623.28-21,511.44-14,757.12

Finding the Fourth Proportional to 15,623.28, 21,511.44 and 14,757.12

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Solution

The fourth proportional to 15,623.28, 21,511.44 and 14,757.12 is: 20,318.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.28 : 21,511.44 = 14,757.12 : x
  2. Step 2: Convert to fraction form
    15,623.28/21,511.44 = 14,757.12/x
  3. Step 3: Cross multiply
    15,623.28x = 21,511.44 × 14,757.12
  4. Step 4: Simplify right side
    15,623.28x = 317,446,901.45
  5. Step 5: Solve for x
    x = 317,446,901.45/15,623.28
  6. Step 6: Final answer
    x = 20,318.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.