Home / 42,418.29-63,530.54-20,247.28

Finding the Fourth Proportional to 42,418.29, 63,530.54 and 20,247.28

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Solution

The fourth proportional to 42,418.29, 63,530.54 and 20,247.28 is: 30,324.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.29 : 63,530.54 = 20,247.28 : x
  2. Step 2: Convert to fraction form
    42,418.29/63,530.54 = 20,247.28/x
  3. Step 3: Cross multiply
    42,418.29x = 63,530.54 × 20,247.28
  4. Step 4: Simplify right side
    42,418.29x = 1,286,320,549.03
  5. Step 5: Solve for x
    x = 1,286,320,549.03/42,418.29
  6. Step 6: Final answer
    x = 30,324.67

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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.