Home / 28,228.37-42,339.30-7,453.49

Finding the Fourth Proportional to 28,228.37, 42,339.30 and 7,453.49

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Solution

The fourth proportional to 28,228.37, 42,339.30 and 7,453.49 is: 11,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.37 : 42,339.30 = 7,453.49 : x
  2. Step 2: Convert to fraction form
    28,228.37/42,339.30 = 7,453.49/x
  3. Step 3: Cross multiply
    28,228.37x = 42,339.30 × 7,453.49
  4. Step 4: Simplify right side
    28,228.37x = 315,575,549.16
  5. Step 5: Solve for x
    x = 315,575,549.16/28,228.37
  6. Step 6: Final answer
    x = 11,179.38

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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.