Home / 38,496.75-53,126.40-21,500.10

Finding the Fourth Proportional to 38,496.75, 53,126.40 and 21,500.10

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Solution

The fourth proportional to 38,496.75, 53,126.40 and 21,500.10 is: 29,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,496.75 : 53,126.40 = 21,500.10 : x
  2. Step 2: Convert to fraction form
    38,496.75/53,126.40 = 21,500.10/x
  3. Step 3: Cross multiply
    38,496.75x = 53,126.40 × 21,500.10
  4. Step 4: Simplify right side
    38,496.75x = 1,142,222,912.64
  5. Step 5: Solve for x
    x = 1,142,222,912.64/38,496.75
  6. Step 6: Final answer
    x = 29,670.63

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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.