Home / 21,101.53-29,119.47-11,541.37

Finding the Fourth Proportional to 21,101.53, 29,119.47 and 11,541.37

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Solution

The fourth proportional to 21,101.53, 29,119.47 and 11,541.37 is: 15,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101.53 : 29,119.47 = 11,541.37 : x
  2. Step 2: Convert to fraction form
    21,101.53/29,119.47 = 11,541.37/x
  3. Step 3: Cross multiply
    21,101.53x = 29,119.47 × 11,541.37
  4. Step 4: Simplify right side
    21,101.53x = 336,078,577.47
  5. Step 5: Solve for x
    x = 336,078,577.47/21,101.53
  6. Step 6: Final answer
    x = 15,926.74

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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.