Home / 30,020.10-45,036.18-8,960.46

Finding the Fourth Proportional to 30,020.10, 45,036.18 and 8,960.46

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Solution

The fourth proportional to 30,020.10, 45,036.18 and 8,960.46 is: 13,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.10 : 45,036.18 = 8,960.46 : x
  2. Step 2: Convert to fraction form
    30,020.10/45,036.18 = 8,960.46/x
  3. Step 3: Cross multiply
    30,020.10x = 45,036.18 × 8,960.46
  4. Step 4: Simplify right side
    30,020.10x = 403,544,889.44
  5. Step 5: Solve for x
    x = 403,544,889.44/30,020.10
  6. Step 6: Final answer
    x = 13,442.49

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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.