Home / 28,576.49-42,868.38-8,856.23

Finding the Fourth Proportional to 28,576.49, 42,868.38 and 8,856.23

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Solution

The fourth proportional to 28,576.49, 42,868.38 and 8,856.23 is: 13,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.49 : 42,868.38 = 8,856.23 : x
  2. Step 2: Convert to fraction form
    28,576.49/42,868.38 = 8,856.23/x
  3. Step 3: Cross multiply
    28,576.49x = 42,868.38 × 8,856.23
  4. Step 4: Simplify right side
    28,576.49x = 379,652,233.01
  5. Step 5: Solve for x
    x = 379,652,233.01/28,576.49
  6. Step 6: Final answer
    x = 13,285.47

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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.