Home / 36,285.66-54,412.08-12,912.72

Finding the Fourth Proportional to 36,285.66, 54,412.08 and 12,912.72

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Solution

The fourth proportional to 36,285.66, 54,412.08 and 12,912.72 is: 19,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,285.66 : 54,412.08 = 12,912.72 : x
  2. Step 2: Convert to fraction form
    36,285.66/54,412.08 = 12,912.72/x
  3. Step 3: Cross multiply
    36,285.66x = 54,412.08 × 12,912.72
  4. Step 4: Simplify right side
    36,285.66x = 702,607,953.66
  5. Step 5: Solve for x
    x = 702,607,953.66/36,285.66
  6. Step 6: Final answer
    x = 19,363.24

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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.