Home / 30,987.20-46,480.38-7,613.84

Finding the Fourth Proportional to 30,987.20, 46,480.38 and 7,613.84

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Solution

The fourth proportional to 30,987.20, 46,480.38 and 7,613.84 is: 11,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.20 : 46,480.38 = 7,613.84 : x
  2. Step 2: Convert to fraction form
    30,987.20/46,480.38 = 7,613.84/x
  3. Step 3: Cross multiply
    30,987.20x = 46,480.38 × 7,613.84
  4. Step 4: Simplify right side
    30,987.20x = 353,893,944.06
  5. Step 5: Solve for x
    x = 353,893,944.06/30,987.20
  6. Step 6: Final answer
    x = 11,420.65

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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.