Home / 30,542.64-42,150.84-17,113.44

Finding the Fourth Proportional to 30,542.64, 42,150.84 and 17,113.44

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Solution

The fourth proportional to 30,542.64, 42,150.84 and 17,113.44 is: 23,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542.64 : 42,150.84 = 17,113.44 : x
  2. Step 2: Convert to fraction form
    30,542.64/42,150.84 = 17,113.44/x
  3. Step 3: Cross multiply
    30,542.64x = 42,150.84 × 17,113.44
  4. Step 4: Simplify right side
    30,542.64x = 721,345,871.29
  5. Step 5: Solve for x
    x = 721,345,871.29/30,542.64
  6. Step 6: Final answer
    x = 23,617.67

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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.