Home / 30,390.12-45,590.94-9,616.68

Finding the Fourth Proportional to 30,390.12, 45,590.94 and 9,616.68

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Solution

The fourth proportional to 30,390.12, 45,590.94 and 9,616.68 is: 14,426.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.12 : 45,590.94 = 9,616.68 : x
  2. Step 2: Convert to fraction form
    30,390.12/45,590.94 = 9,616.68/x
  3. Step 3: Cross multiply
    30,390.12x = 45,590.94 × 9,616.68
  4. Step 4: Simplify right side
    30,390.12x = 438,433,480.88
  5. Step 5: Solve for x
    x = 438,433,480.88/30,390.12
  6. Step 6: Final answer
    x = 14,426.84

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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.