Home / 42,563.36-63,780.24-20,346.20

Finding the Fourth Proportional to 42,563.36, 63,780.24 and 20,346.20

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Solution

The fourth proportional to 42,563.36, 63,780.24 and 20,346.20 is: 30,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,563.36 : 63,780.24 = 20,346.20 : x
  2. Step 2: Convert to fraction form
    42,563.36/63,780.24 = 20,346.20/x
  3. Step 3: Cross multiply
    42,563.36x = 63,780.24 × 20,346.20
  4. Step 4: Simplify right side
    42,563.36x = 1,297,685,519.09
  5. Step 5: Solve for x
    x = 1,297,685,519.09/42,563.36
  6. Step 6: Final answer
    x = 30,488.32

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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.