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Finding the Fourth Proportional to 28,548.86, 42,823.29 and 8,826.98

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Solution

The fourth proportional to 28,548.86, 42,823.29 and 8,826.98 is: 13,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,548.86 : 42,823.29 = 8,826.98 : x
  2. Step 2: Convert to fraction form
    28,548.86/42,823.29 = 8,826.98/x
  3. Step 3: Cross multiply
    28,548.86x = 42,823.29 × 8,826.98
  4. Step 4: Simplify right side
    28,548.86x = 378,000,324.36
  5. Step 5: Solve for x
    x = 378,000,324.36/28,548.86
  6. Step 6: Final answer
    x = 13,240.47

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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.