Home / 30,185.10-45,194.54-15,321.32

Finding the Fourth Proportional to 30,185.10, 45,194.54 and 15,321.32

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Solution

The fourth proportional to 30,185.10, 45,194.54 and 15,321.32 is: 22,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.10 : 45,194.54 = 15,321.32 : x
  2. Step 2: Convert to fraction form
    30,185.10/45,194.54 = 15,321.32/x
  3. Step 3: Cross multiply
    30,185.10x = 45,194.54 × 15,321.32
  4. Step 4: Simplify right side
    30,185.10x = 692,440,009.59
  5. Step 5: Solve for x
    x = 692,440,009.59/30,185.10
  6. Step 6: Final answer
    x = 22,939.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.