Home / 30,464.37-42,049.77-17,720.55

Finding the Fourth Proportional to 30,464.37, 42,049.77 and 17,720.55

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Solution

The fourth proportional to 30,464.37, 42,049.77 and 17,720.55 is: 24,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,464.37 : 42,049.77 = 17,720.55 : x
  2. Step 2: Convert to fraction form
    30,464.37/42,049.77 = 17,720.55/x
  3. Step 3: Cross multiply
    30,464.37x = 42,049.77 × 17,720.55
  4. Step 4: Simplify right side
    30,464.37x = 745,145,051.77
  5. Step 5: Solve for x
    x = 745,145,051.77/30,464.37
  6. Step 6: Final answer
    x = 24,459.56

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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.