Home / 30,808.22-42,515.83-17,379.74

Finding the Fourth Proportional to 30,808.22, 42,515.83 and 17,379.74

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Solution

The fourth proportional to 30,808.22, 42,515.83 and 17,379.74 is: 23,984.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.22 : 42,515.83 = 17,379.74 : x
  2. Step 2: Convert to fraction form
    30,808.22/42,515.83 = 17,379.74/x
  3. Step 3: Cross multiply
    30,808.22x = 42,515.83 × 17,379.74
  4. Step 4: Simplify right side
    30,808.22x = 738,913,771.81
  5. Step 5: Solve for x
    x = 738,913,771.81/30,808.22
  6. Step 6: Final answer
    x = 23,984.31

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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.