Home / 31,203.40-46,805.10-30,620.20

Finding the Fourth Proportional to 31,203.40, 46,805.10 and 30,620.20

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Solution

The fourth proportional to 31,203.40, 46,805.10 and 30,620.20 is: 45,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,203.40 : 46,805.10 = 30,620.20 : x
  2. Step 2: Convert to fraction form
    31,203.40/46,805.10 = 30,620.20/x
  3. Step 3: Cross multiply
    31,203.40x = 46,805.10 × 30,620.20
  4. Step 4: Simplify right side
    31,203.40x = 1,433,181,523.02
  5. Step 5: Solve for x
    x = 1,433,181,523.02/31,203.40
  6. Step 6: Final answer
    x = 45,930.30

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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.