Home / 19,970.21-27,558.98-11,017.98

Finding the Fourth Proportional to 19,970.21, 27,558.98 and 11,017.98

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Solution

The fourth proportional to 19,970.21, 27,558.98 and 11,017.98 is: 15,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.21 : 27,558.98 = 11,017.98 : x
  2. Step 2: Convert to fraction form
    19,970.21/27,558.98 = 11,017.98/x
  3. Step 3: Cross multiply
    19,970.21x = 27,558.98 × 11,017.98
  4. Step 4: Simplify right side
    19,970.21x = 303,644,230.17
  5. Step 5: Solve for x
    x = 303,644,230.17/19,970.21
  6. Step 6: Final answer
    x = 15,204.86

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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.