Home / 30,421.17-41,980.75-16,992.62

Finding the Fourth Proportional to 30,421.17, 41,980.75 and 16,992.62

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Solution

The fourth proportional to 30,421.17, 41,980.75 and 16,992.62 is: 23,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421.17 : 41,980.75 = 16,992.62 : x
  2. Step 2: Convert to fraction form
    30,421.17/41,980.75 = 16,992.62/x
  3. Step 3: Cross multiply
    30,421.17x = 41,980.75 × 16,992.62
  4. Step 4: Simplify right side
    30,421.17x = 713,362,932.07
  5. Step 5: Solve for x
    x = 713,362,932.07/30,421.17
  6. Step 6: Final answer
    x = 23,449.56

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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.