Home / 30,659.12-42,309.84-17,230.08

Finding the Fourth Proportional to 30,659.12, 42,309.84 and 17,230.08

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Solution

The fourth proportional to 30,659.12, 42,309.84 and 17,230.08 is: 23,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.12 : 42,309.84 = 17,230.08 : x
  2. Step 2: Convert to fraction form
    30,659.12/42,309.84 = 17,230.08/x
  3. Step 3: Cross multiply
    30,659.12x = 42,309.84 × 17,230.08
  4. Step 4: Simplify right side
    30,659.12x = 729,001,927.99
  5. Step 5: Solve for x
    x = 729,001,927.99/30,659.12
  6. Step 6: Final answer
    x = 23,777.65

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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.