Home / 30,747.54-42,433.68-23,180.52

Finding the Fourth Proportional to 30,747.54, 42,433.68 and 23,180.52

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Solution

The fourth proportional to 30,747.54, 42,433.68 and 23,180.52 is: 31,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,747.54 : 42,433.68 = 23,180.52 : x
  2. Step 2: Convert to fraction form
    30,747.54/42,433.68 = 23,180.52/x
  3. Step 3: Cross multiply
    30,747.54x = 42,433.68 × 23,180.52
  4. Step 4: Simplify right side
    30,747.54x = 983,634,767.91
  5. Step 5: Solve for x
    x = 983,634,767.91/30,747.54
  6. Step 6: Final answer
    x = 31,990.68

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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.