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Finding the Fourth Proportional to 33,110.64, 45,701.28 and 18,971.28

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Solution

The fourth proportional to 33,110.64, 45,701.28 and 18,971.28 is: 26,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,110.64 : 45,701.28 = 18,971.28 : x
  2. Step 2: Convert to fraction form
    33,110.64/45,701.28 = 18,971.28/x
  3. Step 3: Cross multiply
    33,110.64x = 45,701.28 × 18,971.28
  4. Step 4: Simplify right side
    33,110.64x = 867,011,779.24
  5. Step 5: Solve for x
    x = 867,011,779.24/33,110.64
  6. Step 6: Final answer
    x = 26,185.29

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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.