Home / 30,672.73-42,316.36-17,240.91

Finding the Fourth Proportional to 30,672.73, 42,316.36 and 17,240.91

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Solution

The fourth proportional to 30,672.73, 42,316.36 and 17,240.91 is: 23,785.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.73 : 42,316.36 = 17,240.91 : x
  2. Step 2: Convert to fraction form
    30,672.73/42,316.36 = 17,240.91/x
  3. Step 3: Cross multiply
    30,672.73x = 42,316.36 × 17,240.91
  4. Step 4: Simplify right side
    30,672.73x = 729,572,554.29
  5. Step 5: Solve for x
    x = 729,572,554.29/30,672.73
  6. Step 6: Final answer
    x = 23,785.71

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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.