Home / 20,798.02-28,699.95-11,845.36

Finding the Fourth Proportional to 20,798.02, 28,699.95 and 11,845.36

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Solution

The fourth proportional to 20,798.02, 28,699.95 and 11,845.36 is: 16,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.02 : 28,699.95 = 11,845.36 : x
  2. Step 2: Convert to fraction form
    20,798.02/28,699.95 = 11,845.36/x
  3. Step 3: Cross multiply
    20,798.02x = 28,699.95 × 11,845.36
  4. Step 4: Simplify right side
    20,798.02x = 339,961,239.73
  5. Step 5: Solve for x
    x = 339,961,239.73/20,798.02
  6. Step 6: Final answer
    x = 16,345.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.