Home / 42,506.76-63,732.79-20,319.64

Finding the Fourth Proportional to 42,506.76, 63,732.79 and 20,319.64

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Solution

The fourth proportional to 42,506.76, 63,732.79 and 20,319.64 is: 30,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,506.76 : 63,732.79 = 20,319.64 : x
  2. Step 2: Convert to fraction form
    42,506.76/63,732.79 = 20,319.64/x
  3. Step 3: Cross multiply
    42,506.76x = 63,732.79 × 20,319.64
  4. Step 4: Simplify right side
    42,506.76x = 1,295,027,349.00
  5. Step 5: Solve for x
    x = 1,295,027,349.00/42,506.76
  6. Step 6: Final answer
    x = 30,466.39

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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.