Home / 20,753.52-31,101.09-15,563.04

Finding the Fourth Proportional to 20,753.52, 31,101.09 and 15,563.04

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Solution

The fourth proportional to 20,753.52, 31,101.09 and 15,563.04 is: 23,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.52 : 31,101.09 = 15,563.04 : x
  2. Step 2: Convert to fraction form
    20,753.52/31,101.09 = 15,563.04/x
  3. Step 3: Cross multiply
    20,753.52x = 31,101.09 × 15,563.04
  4. Step 4: Simplify right side
    20,753.52x = 484,027,507.71
  5. Step 5: Solve for x
    x = 484,027,507.71/20,753.52
  6. Step 6: Final answer
    x = 23,322.67

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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.