Home / 21,555.24-29,746.92-13,058.94

Finding the Fourth Proportional to 21,555.24, 29,746.92 and 13,058.94

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Solution

The fourth proportional to 21,555.24, 29,746.92 and 13,058.94 is: 18,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555.24 : 29,746.92 = 13,058.94 : x
  2. Step 2: Convert to fraction form
    21,555.24/29,746.92 = 13,058.94/x
  3. Step 3: Cross multiply
    21,555.24x = 29,746.92 × 13,058.94
  4. Step 4: Simplify right side
    21,555.24x = 388,463,243.46
  5. Step 5: Solve for x
    x = 388,463,243.46/21,555.24
  6. Step 6: Final answer
    x = 18,021.75

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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.