Home / 40,896.72-61,338.96-12,810.24

Finding the Fourth Proportional to 40,896.72, 61,338.96 and 12,810.24

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Solution

The fourth proportional to 40,896.72, 61,338.96 and 12,810.24 is: 19,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,896.72 : 61,338.96 = 12,810.24 : x
  2. Step 2: Convert to fraction form
    40,896.72/61,338.96 = 12,810.24/x
  3. Step 3: Cross multiply
    40,896.72x = 61,338.96 × 12,810.24
  4. Step 4: Simplify right side
    40,896.72x = 785,766,798.95
  5. Step 5: Solve for x
    x = 785,766,798.95/40,896.72
  6. Step 6: Final answer
    x = 19,213.44

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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.