Home / 21,705.98-29,918.16-19,823.94

Finding the Fourth Proportional to 21,705.98, 29,918.16 and 19,823.94

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Solution

The fourth proportional to 21,705.98, 29,918.16 and 19,823.94 is: 27,324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.98 : 29,918.16 = 19,823.94 : x
  2. Step 2: Convert to fraction form
    21,705.98/29,918.16 = 19,823.94/x
  3. Step 3: Cross multiply
    21,705.98x = 29,918.16 × 19,823.94
  4. Step 4: Simplify right side
    21,705.98x = 593,095,808.75
  5. Step 5: Solve for x
    x = 593,095,808.75/21,705.98
  6. Step 6: Final answer
    x = 27,324.08

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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.