Home / 30,800.73-42,506.45-17,371.71

Finding the Fourth Proportional to 30,800.73, 42,506.45 and 17,371.71

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Solution

The fourth proportional to 30,800.73, 42,506.45 and 17,371.71 is: 23,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,800.73 : 42,506.45 = 17,371.71 : x
  2. Step 2: Convert to fraction form
    30,800.73/42,506.45 = 17,371.71/x
  3. Step 3: Cross multiply
    30,800.73x = 42,506.45 × 17,371.71
  4. Step 4: Simplify right side
    30,800.73x = 738,409,635.67
  5. Step 5: Solve for x
    x = 738,409,635.67/30,800.73
  6. Step 6: Final answer
    x = 23,973.77

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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.