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Finding the Fourth Proportional to 28,586.58, 42,884.02 and 8,866.72

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Solution

The fourth proportional to 28,586.58, 42,884.02 and 8,866.72 is: 13,301.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586.58 : 42,884.02 = 8,866.72 : x
  2. Step 2: Convert to fraction form
    28,586.58/42,884.02 = 8,866.72/x
  3. Step 3: Cross multiply
    28,586.58x = 42,884.02 × 8,866.72
  4. Step 4: Simplify right side
    28,586.58x = 380,240,682.86
  5. Step 5: Solve for x
    x = 380,240,682.86/28,586.58
  6. Step 6: Final answer
    x = 13,301.37

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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.