Home / 38,720.98-53,087.06-38,021.14

Finding the Fourth Proportional to 38,720.98, 53,087.06 and 38,021.14

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Solution

The fourth proportional to 38,720.98, 53,087.06 and 38,021.14 is: 52,127.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720.98 : 53,087.06 = 38,021.14 : x
  2. Step 2: Convert to fraction form
    38,720.98/53,087.06 = 38,021.14/x
  3. Step 3: Cross multiply
    38,720.98x = 53,087.06 × 38,021.14
  4. Step 4: Simplify right side
    38,720.98x = 2,018,430,540.45
  5. Step 5: Solve for x
    x = 2,018,430,540.45/38,720.98
  6. Step 6: Final answer
    x = 52,127.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.