Home / 28,808.48-43,176.18-12,996.56

Finding the Fourth Proportional to 28,808.48, 43,176.18 and 12,996.56

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Solution

The fourth proportional to 28,808.48, 43,176.18 and 12,996.56 is: 19,478.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.48 : 43,176.18 = 12,996.56 : x
  2. Step 2: Convert to fraction form
    28,808.48/43,176.18 = 12,996.56/x
  3. Step 3: Cross multiply
    28,808.48x = 43,176.18 × 12,996.56
  4. Step 4: Simplify right side
    28,808.48x = 561,141,813.94
  5. Step 5: Solve for x
    x = 561,141,813.94/28,808.48
  6. Step 6: Final answer
    x = 19,478.36

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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.