Home / 42,506.97-63,760.58-20,315.31

Finding the Fourth Proportional to 42,506.97, 63,760.58 and 20,315.31

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Solution

The fourth proportional to 42,506.97, 63,760.58 and 20,315.31 is: 30,473.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,506.97 : 63,760.58 = 20,315.31 : x
  2. Step 2: Convert to fraction form
    42,506.97/63,760.58 = 20,315.31/x
  3. Step 3: Cross multiply
    42,506.97x = 63,760.58 × 20,315.31
  4. Step 4: Simplify right side
    42,506.97x = 1,295,315,846.90
  5. Step 5: Solve for x
    x = 1,295,315,846.90/42,506.97
  6. Step 6: Final answer
    x = 30,473.02

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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.