Home / 21,301.44-29,386.15-13,329.82

Finding the Fourth Proportional to 21,301.44, 29,386.15 and 13,329.82

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Solution

The fourth proportional to 21,301.44, 29,386.15 and 13,329.82 is: 18,389.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.44 : 29,386.15 = 13,329.82 : x
  2. Step 2: Convert to fraction form
    21,301.44/29,386.15 = 13,329.82/x
  3. Step 3: Cross multiply
    21,301.44x = 29,386.15 × 13,329.82
  4. Step 4: Simplify right side
    21,301.44x = 391,712,089.99
  5. Step 5: Solve for x
    x = 391,712,089.99/21,301.44
  6. Step 6: Final answer
    x = 18,389.00

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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.