Home / 30,725.48-42,405.19-17,299.35

Finding the Fourth Proportional to 30,725.48, 42,405.19 and 17,299.35

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Solution

The fourth proportional to 30,725.48, 42,405.19 and 17,299.35 is: 23,875.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,725.48 : 42,405.19 = 17,299.35 : x
  2. Step 2: Convert to fraction form
    30,725.48/42,405.19 = 17,299.35/x
  3. Step 3: Cross multiply
    30,725.48x = 42,405.19 × 17,299.35
  4. Step 4: Simplify right side
    30,725.48x = 733,582,180.38
  5. Step 5: Solve for x
    x = 733,582,180.38/30,725.48
  6. Step 6: Final answer
    x = 23,875.37

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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.