Home / 30,765.25-42,459.42-17,339.77

Finding the Fourth Proportional to 30,765.25, 42,459.42 and 17,339.77

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Solution

The fourth proportional to 30,765.25, 42,459.42 and 17,339.77 is: 23,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.25 : 42,459.42 = 17,339.77 : x
  2. Step 2: Convert to fraction form
    30,765.25/42,459.42 = 17,339.77/x
  3. Step 3: Cross multiply
    30,765.25x = 42,459.42 × 17,339.77
  4. Step 4: Simplify right side
    30,765.25x = 736,236,577.13
  5. Step 5: Solve for x
    x = 736,236,577.13/30,765.25
  6. Step 6: Final answer
    x = 23,930.78

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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.