Home / 21,054.81-29,055.70-11,623.38

Finding the Fourth Proportional to 21,054.81, 29,055.70 and 11,623.38

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Solution

The fourth proportional to 21,054.81, 29,055.70 and 11,623.38 is: 16,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.81 : 29,055.70 = 11,623.38 : x
  2. Step 2: Convert to fraction form
    21,054.81/29,055.70 = 11,623.38/x
  3. Step 3: Cross multiply
    21,054.81x = 29,055.70 × 11,623.38
  4. Step 4: Simplify right side
    21,054.81x = 337,725,442.27
  5. Step 5: Solve for x
    x = 337,725,442.27/21,054.81
  6. Step 6: Final answer
    x = 16,040.30

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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.