Home / 30,627.41-42,270.51-18,697.73

Finding the Fourth Proportional to 30,627.41, 42,270.51 and 18,697.73

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Solution

The fourth proportional to 30,627.41, 42,270.51 and 18,697.73 is: 25,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,627.41 : 42,270.51 = 18,697.73 : x
  2. Step 2: Convert to fraction form
    30,627.41/42,270.51 = 18,697.73/x
  3. Step 3: Cross multiply
    30,627.41x = 42,270.51 × 18,697.73
  4. Step 4: Simplify right side
    30,627.41x = 790,362,371.59
  5. Step 5: Solve for x
    x = 790,362,371.59/30,627.41
  6. Step 6: Final answer
    x = 25,805.72

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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.