Home / 30,765.20-42,456.14-17,336.66

Finding the Fourth Proportional to 30,765.20, 42,456.14 and 17,336.66

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Solution

The fourth proportional to 30,765.20, 42,456.14 and 17,336.66 is: 23,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.20 : 42,456.14 = 17,336.66 : x
  2. Step 2: Convert to fraction form
    30,765.20/42,456.14 = 17,336.66/x
  3. Step 3: Cross multiply
    30,765.20x = 42,456.14 × 17,336.66
  4. Step 4: Simplify right side
    30,765.20x = 736,047,495.15
  5. Step 5: Solve for x
    x = 736,047,495.15/30,765.20
  6. Step 6: Final answer
    x = 23,924.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.