Home / 28,270.50-42,405.75-8,548.62

Finding the Fourth Proportional to 28,270.50, 42,405.75 and 8,548.62

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Solution

The fourth proportional to 28,270.50, 42,405.75 and 8,548.62 is: 12,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.50 : 42,405.75 = 8,548.62 : x
  2. Step 2: Convert to fraction form
    28,270.50/42,405.75 = 8,548.62/x
  3. Step 3: Cross multiply
    28,270.50x = 42,405.75 × 8,548.62
  4. Step 4: Simplify right side
    28,270.50x = 362,510,642.57
  5. Step 5: Solve for x
    x = 362,510,642.57/28,270.50
  6. Step 6: Final answer
    x = 12,822.93

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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.