Home / 30,605.58-42,234.60-17,177.40

Finding the Fourth Proportional to 30,605.58, 42,234.60 and 17,177.40

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Solution

The fourth proportional to 30,605.58, 42,234.60 and 17,177.40 is: 23,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.58 : 42,234.60 = 17,177.40 : x
  2. Step 2: Convert to fraction form
    30,605.58/42,234.60 = 17,177.40/x
  3. Step 3: Cross multiply
    30,605.58x = 42,234.60 × 17,177.40
  4. Step 4: Simplify right side
    30,605.58x = 725,480,618.04
  5. Step 5: Solve for x
    x = 725,480,618.04/30,605.58
  6. Step 6: Final answer
    x = 23,704.19

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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.