Home / 30,351.34-45,533.70-9,291.54

Finding the Fourth Proportional to 30,351.34, 45,533.70 and 9,291.54

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Solution

The fourth proportional to 30,351.34, 45,533.70 and 9,291.54 is: 13,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,351.34 : 45,533.70 = 9,291.54 : x
  2. Step 2: Convert to fraction form
    30,351.34/45,533.70 = 9,291.54/x
  3. Step 3: Cross multiply
    30,351.34x = 45,533.70 × 9,291.54
  4. Step 4: Simplify right side
    30,351.34x = 423,078,194.90
  5. Step 5: Solve for x
    x = 423,078,194.90/30,351.34
  6. Step 6: Final answer
    x = 13,939.36

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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.