Home / 28,566.53-42,858.54-12,784.85

Finding the Fourth Proportional to 28,566.53, 42,858.54 and 12,784.85

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Solution

The fourth proportional to 28,566.53, 42,858.54 and 12,784.85 is: 19,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.53 : 42,858.54 = 12,784.85 : x
  2. Step 2: Convert to fraction form
    28,566.53/42,858.54 = 12,784.85/x
  3. Step 3: Cross multiply
    28,566.53x = 42,858.54 × 12,784.85
  4. Step 4: Simplify right side
    28,566.53x = 547,939,790.83
  5. Step 5: Solve for x
    x = 547,939,790.83/28,566.53
  6. Step 6: Final answer
    x = 19,181.18

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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.