Home / 30,269.21-45,374.65-9,487.85

Finding the Fourth Proportional to 30,269.21, 45,374.65 and 9,487.85

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Solution

The fourth proportional to 30,269.21, 45,374.65 and 9,487.85 is: 14,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,269.21 : 45,374.65 = 9,487.85 : x
  2. Step 2: Convert to fraction form
    30,269.21/45,374.65 = 9,487.85/x
  3. Step 3: Cross multiply
    30,269.21x = 45,374.65 × 9,487.85
  4. Step 4: Simplify right side
    30,269.21x = 430,507,622.41
  5. Step 5: Solve for x
    x = 430,507,622.41/30,269.21
  6. Step 6: Final answer
    x = 14,222.63

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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.