Home / 30,821.08-42,532.38-17,391.99

Finding the Fourth Proportional to 30,821.08, 42,532.38 and 17,391.99

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Solution

The fourth proportional to 30,821.08, 42,532.38 and 17,391.99 is: 24,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821.08 : 42,532.38 = 17,391.99 : x
  2. Step 2: Convert to fraction form
    30,821.08/42,532.38 = 17,391.99/x
  3. Step 3: Cross multiply
    30,821.08x = 42,532.38 × 17,391.99
  4. Step 4: Simplify right side
    30,821.08x = 739,722,558.45
  5. Step 5: Solve for x
    x = 739,722,558.45/30,821.08
  6. Step 6: Final answer
    x = 24,000.54

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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.