Home / 30,556.26-42,165.36-18,617.67

Finding the Fourth Proportional to 30,556.26, 42,165.36 and 18,617.67

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Solution

The fourth proportional to 30,556.26, 42,165.36 and 18,617.67 is: 25,691.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.26 : 42,165.36 = 18,617.67 : x
  2. Step 2: Convert to fraction form
    30,556.26/42,165.36 = 18,617.67/x
  3. Step 3: Cross multiply
    30,556.26x = 42,165.36 × 18,617.67
  4. Step 4: Simplify right side
    30,556.26x = 785,020,757.91
  5. Step 5: Solve for x
    x = 785,020,757.91/30,556.26
  6. Step 6: Final answer
    x = 25,691.00

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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.