Home / 30,739.14-46,079.55-15,138.54

Finding the Fourth Proportional to 30,739.14, 46,079.55 and 15,138.54

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Solution

The fourth proportional to 30,739.14, 46,079.55 and 15,138.54 is: 22,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,739.14 : 46,079.55 = 15,138.54 : x
  2. Step 2: Convert to fraction form
    30,739.14/46,079.55 = 15,138.54/x
  3. Step 3: Cross multiply
    30,739.14x = 46,079.55 × 15,138.54
  4. Step 4: Simplify right side
    30,739.14x = 697,577,110.86
  5. Step 5: Solve for x
    x = 697,577,110.86/30,739.14
  6. Step 6: Final answer
    x = 22,693.45

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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.