Home / 38,122.82-52,608.05-21,126.63

Finding the Fourth Proportional to 38,122.82, 52,608.05 and 21,126.63

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Solution

The fourth proportional to 38,122.82, 52,608.05 and 21,126.63 is: 29,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.82 : 52,608.05 = 21,126.63 : x
  2. Step 2: Convert to fraction form
    38,122.82/52,608.05 = 21,126.63/x
  3. Step 3: Cross multiply
    38,122.82x = 52,608.05 × 21,126.63
  4. Step 4: Simplify right side
    38,122.82x = 1,111,430,807.37
  5. Step 5: Solve for x
    x = 1,111,430,807.37/38,122.82
  6. Step 6: Final answer
    x = 29,153.95

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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.