Home / 30,687.20-42,321.84-23,962.40

Finding the Fourth Proportional to 30,687.20, 42,321.84 and 23,962.40

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Solution

The fourth proportional to 30,687.20, 42,321.84 and 23,962.40 is: 33,047.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687.20 : 42,321.84 = 23,962.40 : x
  2. Step 2: Convert to fraction form
    30,687.20/42,321.84 = 23,962.40/x
  3. Step 3: Cross multiply
    30,687.20x = 42,321.84 × 23,962.40
  4. Step 4: Simplify right side
    30,687.20x = 1,014,132,858.82
  5. Step 5: Solve for x
    x = 1,014,132,858.82/30,687.20
  6. Step 6: Final answer
    x = 33,047.42

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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.