Home / 30,671.10-42,330.60-17,243.46

Finding the Fourth Proportional to 30,671.10, 42,330.60 and 17,243.46

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Solution

The fourth proportional to 30,671.10, 42,330.60 and 17,243.46 is: 23,798.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,671.10 : 42,330.60 = 17,243.46 : x
  2. Step 2: Convert to fraction form
    30,671.10/42,330.60 = 17,243.46/x
  3. Step 3: Cross multiply
    30,671.10x = 42,330.60 × 17,243.46
  4. Step 4: Simplify right side
    30,671.10x = 729,926,007.88
  5. Step 5: Solve for x
    x = 729,926,007.88/30,671.10
  6. Step 6: Final answer
    x = 23,798.49

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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.