Home / 30,800.70-42,506.04-17,372.52

Finding the Fourth Proportional to 30,800.70, 42,506.04 and 17,372.52

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Solution

The fourth proportional to 30,800.70, 42,506.04 and 17,372.52 is: 23,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,800.70 : 42,506.04 = 17,372.52 : x
  2. Step 2: Convert to fraction form
    30,800.70/42,506.04 = 17,372.52/x
  3. Step 3: Cross multiply
    30,800.70x = 42,506.04 × 17,372.52
  4. Step 4: Simplify right side
    30,800.70x = 738,437,030.02
  5. Step 5: Solve for x
    x = 738,437,030.02/30,800.70
  6. Step 6: Final answer
    x = 23,974.68

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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.