Home / 30,474.99-42,059.97-18,536.02

Finding the Fourth Proportional to 30,474.99, 42,059.97 and 18,536.02

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Solution

The fourth proportional to 30,474.99, 42,059.97 and 18,536.02 is: 25,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,474.99 : 42,059.97 = 18,536.02 : x
  2. Step 2: Convert to fraction form
    30,474.99/42,059.97 = 18,536.02/x
  3. Step 3: Cross multiply
    30,474.99x = 42,059.97 × 18,536.02
  4. Step 4: Simplify right side
    30,474.99x = 779,624,339.97
  5. Step 5: Solve for x
    x = 779,624,339.97/30,474.99
  6. Step 6: Final answer
    x = 25,582.43

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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.