Home / 28,276.62-42,416.98-8,556.74

Finding the Fourth Proportional to 28,276.62, 42,416.98 and 8,556.74

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Solution

The fourth proportional to 28,276.62, 42,416.98 and 8,556.74 is: 12,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.62 : 42,416.98 = 8,556.74 : x
  2. Step 2: Convert to fraction form
    28,276.62/42,416.98 = 8,556.74/x
  3. Step 3: Cross multiply
    28,276.62x = 42,416.98 × 8,556.74
  4. Step 4: Simplify right side
    28,276.62x = 362,950,814.58
  5. Step 5: Solve for x
    x = 362,950,814.58/28,276.62
  6. Step 6: Final answer
    x = 12,835.72

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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.