Home / 30,499.59-45,752.36-9,438.78

Finding the Fourth Proportional to 30,499.59, 45,752.36 and 9,438.78

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Solution

The fourth proportional to 30,499.59, 45,752.36 and 9,438.78 is: 14,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,499.59 : 45,752.36 = 9,438.78 : x
  2. Step 2: Convert to fraction form
    30,499.59/45,752.36 = 9,438.78/x
  3. Step 3: Cross multiply
    30,499.59x = 45,752.36 × 9,438.78
  4. Step 4: Simplify right side
    30,499.59x = 431,846,413.33
  5. Step 5: Solve for x
    x = 431,846,413.33/30,499.59
  6. Step 6: Final answer
    x = 14,159.09

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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.