Home / 21,068.11-29,071.51-11,636.11

Finding the Fourth Proportional to 21,068.11, 29,071.51 and 11,636.11

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Solution

The fourth proportional to 21,068.11, 29,071.51 and 11,636.11 is: 16,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.11 : 29,071.51 = 11,636.11 : x
  2. Step 2: Convert to fraction form
    21,068.11/29,071.51 = 11,636.11/x
  3. Step 3: Cross multiply
    21,068.11x = 29,071.51 × 11,636.11
  4. Step 4: Simplify right side
    21,068.11x = 338,279,288.23
  5. Step 5: Solve for x
    x = 338,279,288.23/21,068.11
  6. Step 6: Final answer
    x = 16,056.46

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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.