Home / 28,186.56-42,285.24-8,466.12

Finding the Fourth Proportional to 28,186.56, 42,285.24 and 8,466.12

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Solution

The fourth proportional to 28,186.56, 42,285.24 and 8,466.12 is: 12,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.56 : 42,285.24 = 8,466.12 : x
  2. Step 2: Convert to fraction form
    28,186.56/42,285.24 = 8,466.12/x
  3. Step 3: Cross multiply
    28,186.56x = 42,285.24 × 8,466.12
  4. Step 4: Simplify right side
    28,186.56x = 357,991,916.07
  5. Step 5: Solve for x
    x = 357,991,916.07/28,186.56
  6. Step 6: Final answer
    x = 12,700.80

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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.