Home / 20,156.95-30,225.02-9,054.15

Finding the Fourth Proportional to 20,156.95, 30,225.02 and 9,054.15

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Solution

The fourth proportional to 20,156.95, 30,225.02 and 9,054.15 is: 13,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.95 : 30,225.02 = 9,054.15 : x
  2. Step 2: Convert to fraction form
    20,156.95/30,225.02 = 9,054.15/x
  3. Step 3: Cross multiply
    20,156.95x = 30,225.02 × 9,054.15
  4. Step 4: Simplify right side
    20,156.95x = 273,661,706.22
  5. Step 5: Solve for x
    x = 273,661,706.22/20,156.95
  6. Step 6: Final answer
    x = 13,576.54

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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.