Home / 21,055.18-29,056.36-11,623.54

Finding the Fourth Proportional to 21,055.18, 29,056.36 and 11,623.54

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Solution

The fourth proportional to 21,055.18, 29,056.36 and 11,623.54 is: 16,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.18 : 29,056.36 = 11,623.54 : x
  2. Step 2: Convert to fraction form
    21,055.18/29,056.36 = 11,623.54/x
  3. Step 3: Cross multiply
    21,055.18x = 29,056.36 × 11,623.54
  4. Step 4: Simplify right side
    21,055.18x = 337,737,762.71
  5. Step 5: Solve for x
    x = 337,737,762.71/21,055.18
  6. Step 6: Final answer
    x = 16,040.60

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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.