Home / 31,179.12-46,768.72-10,402.64

Finding the Fourth Proportional to 31,179.12, 46,768.72 and 10,402.64

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Solution

The fourth proportional to 31,179.12, 46,768.72 and 10,402.64 is: 15,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.12 : 46,768.72 = 10,402.64 : x
  2. Step 2: Convert to fraction form
    31,179.12/46,768.72 = 10,402.64/x
  3. Step 3: Cross multiply
    31,179.12x = 46,768.72 × 10,402.64
  4. Step 4: Simplify right side
    31,179.12x = 486,518,157.42
  5. Step 5: Solve for x
    x = 486,518,157.42/31,179.12
  6. Step 6: Final answer
    x = 15,603.97

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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.