Home / 30,331.87-45,497.92-9,271.83

Finding the Fourth Proportional to 30,331.87, 45,497.92 and 9,271.83

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Solution

The fourth proportional to 30,331.87, 45,497.92 and 9,271.83 is: 13,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.87 : 45,497.92 = 9,271.83 : x
  2. Step 2: Convert to fraction form
    30,331.87/45,497.92 = 9,271.83/x
  3. Step 3: Cross multiply
    30,331.87x = 45,497.92 × 9,271.83
  4. Step 4: Simplify right side
    30,331.87x = 421,848,956.41
  5. Step 5: Solve for x
    x = 421,848,956.41/30,331.87
  6. Step 6: Final answer
    x = 13,907.78

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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.