Home / 30,932.15-42,683.76-18,185.75

Finding the Fourth Proportional to 30,932.15, 42,683.76 and 18,185.75

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Solution

The fourth proportional to 30,932.15, 42,683.76 and 18,185.75 is: 25,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,932.15 : 42,683.76 = 18,185.75 : x
  2. Step 2: Convert to fraction form
    30,932.15/42,683.76 = 18,185.75/x
  3. Step 3: Cross multiply
    30,932.15x = 42,683.76 × 18,185.75
  4. Step 4: Simplify right side
    30,932.15x = 776,235,975.00
  5. Step 5: Solve for x
    x = 776,235,975.00/30,932.15
  6. Step 6: Final answer
    x = 25,094.80

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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.