Home / 30,567.32-42,182.74-17,138.56

Finding the Fourth Proportional to 30,567.32, 42,182.74 and 17,138.56

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Solution

The fourth proportional to 30,567.32, 42,182.74 and 17,138.56 is: 23,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.32 : 42,182.74 = 17,138.56 : x
  2. Step 2: Convert to fraction form
    30,567.32/42,182.74 = 17,138.56/x
  3. Step 3: Cross multiply
    30,567.32x = 42,182.74 × 17,138.56
  4. Step 4: Simplify right side
    30,567.32x = 722,951,420.45
  5. Step 5: Solve for x
    x = 722,951,420.45/30,567.32
  6. Step 6: Final answer
    x = 23,651.12

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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.