Home / 21,401.31-29,534.67-11,841.03

Finding the Fourth Proportional to 21,401.31, 29,534.67 and 11,841.03

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Solution

The fourth proportional to 21,401.31, 29,534.67 and 11,841.03 is: 16,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.31 : 29,534.67 = 11,841.03 : x
  2. Step 2: Convert to fraction form
    21,401.31/29,534.67 = 11,841.03/x
  3. Step 3: Cross multiply
    21,401.31x = 29,534.67 × 11,841.03
  4. Step 4: Simplify right side
    21,401.31x = 349,720,913.51
  5. Step 5: Solve for x
    x = 349,720,913.51/21,401.31
  6. Step 6: Final answer
    x = 16,341.10

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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.