Home / 21,055.41-29,055.91-11,623.77

Finding the Fourth Proportional to 21,055.41, 29,055.91 and 11,623.77

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Solution

The fourth proportional to 21,055.41, 29,055.91 and 11,623.77 is: 16,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.41 : 29,055.91 = 11,623.77 : x
  2. Step 2: Convert to fraction form
    21,055.41/29,055.91 = 11,623.77/x
  3. Step 3: Cross multiply
    21,055.41x = 29,055.91 × 11,623.77
  4. Step 4: Simplify right side
    21,055.41x = 337,739,214.98
  5. Step 5: Solve for x
    x = 337,739,214.98/21,055.41
  6. Step 6: Final answer
    x = 16,040.50

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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.