Home / 30,359.10-45,233.41-28,661.44

Finding the Fourth Proportional to 30,359.10, 45,233.41 and 28,661.44

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Solution

The fourth proportional to 30,359.10, 45,233.41 and 28,661.44 is: 42,703.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.10 : 45,233.41 = 28,661.44 : x
  2. Step 2: Convert to fraction form
    30,359.10/45,233.41 = 28,661.44/x
  3. Step 3: Cross multiply
    30,359.10x = 45,233.41 × 28,661.44
  4. Step 4: Simplify right side
    30,359.10x = 1,296,454,481.97
  5. Step 5: Solve for x
    x = 1,296,454,481.97/30,359.10
  6. Step 6: Final answer
    x = 42,703.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.