Home / 38,701.26-53,408.34-21,709.28

Finding the Fourth Proportional to 38,701.26, 53,408.34 and 21,709.28

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Solution

The fourth proportional to 38,701.26, 53,408.34 and 21,709.28 is: 29,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,701.26 : 53,408.34 = 21,709.28 : x
  2. Step 2: Convert to fraction form
    38,701.26/53,408.34 = 21,709.28/x
  3. Step 3: Cross multiply
    38,701.26x = 53,408.34 × 21,709.28
  4. Step 4: Simplify right side
    38,701.26x = 1,159,456,340.35
  5. Step 5: Solve for x
    x = 1,159,456,340.35/38,701.26
  6. Step 6: Final answer
    x = 29,959.14

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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.