Home / 30,610.47-42,242.40-17,181.74

Finding the Fourth Proportional to 30,610.47, 42,242.40 and 17,181.74

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Solution

The fourth proportional to 30,610.47, 42,242.40 and 17,181.74 is: 23,710.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.47 : 42,242.40 = 17,181.74 : x
  2. Step 2: Convert to fraction form
    30,610.47/42,242.40 = 17,181.74/x
  3. Step 3: Cross multiply
    30,610.47x = 42,242.40 × 17,181.74
  4. Step 4: Simplify right side
    30,610.47x = 725,797,722.56
  5. Step 5: Solve for x
    x = 725,797,722.56/30,610.47
  6. Step 6: Final answer
    x = 23,710.77

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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.