Home / 38,670.51-53,369.58-21,676.39

Finding the Fourth Proportional to 38,670.51, 53,369.58 and 21,676.39

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Solution

The fourth proportional to 38,670.51, 53,369.58 and 21,676.39 is: 29,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,670.51 : 53,369.58 = 21,676.39 : x
  2. Step 2: Convert to fraction form
    38,670.51/53,369.58 = 21,676.39/x
  3. Step 3: Cross multiply
    38,670.51x = 53,369.58 × 21,676.39
  4. Step 4: Simplify right side
    38,670.51x = 1,156,859,563.37
  5. Step 5: Solve for x
    x = 1,156,859,563.37/38,670.51
  6. Step 6: Final answer
    x = 29,915.81

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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.