Home / 30,018.10-45,033.18-8,958.46

Finding the Fourth Proportional to 30,018.10, 45,033.18 and 8,958.46

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Solution

The fourth proportional to 30,018.10, 45,033.18 and 8,958.46 is: 13,439.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,018.10 : 45,033.18 = 8,958.46 : x
  2. Step 2: Convert to fraction form
    30,018.10/45,033.18 = 8,958.46/x
  3. Step 3: Cross multiply
    30,018.10x = 45,033.18 × 8,958.46
  4. Step 4: Simplify right side
    30,018.10x = 403,427,941.70
  5. Step 5: Solve for x
    x = 403,427,941.70/30,018.10
  6. Step 6: Final answer
    x = 13,439.49

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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.