Home / 21,775.06-30,040.95-14,218.98

Finding the Fourth Proportional to 21,775.06, 30,040.95 and 14,218.98

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Solution

The fourth proportional to 21,775.06, 30,040.95 and 14,218.98 is: 19,616.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.06 : 30,040.95 = 14,218.98 : x
  2. Step 2: Convert to fraction form
    21,775.06/30,040.95 = 14,218.98/x
  3. Step 3: Cross multiply
    21,775.06x = 30,040.95 × 14,218.98
  4. Step 4: Simplify right side
    21,775.06x = 427,151,667.23
  5. Step 5: Solve for x
    x = 427,151,667.23/21,775.06
  6. Step 6: Final answer
    x = 19,616.56

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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.