Home / 38,349.70-52,921.29-21,579.46

Finding the Fourth Proportional to 38,349.70, 52,921.29 and 21,579.46

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Solution

The fourth proportional to 38,349.70, 52,921.29 and 21,579.46 is: 29,778.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,349.70 : 52,921.29 = 21,579.46 : x
  2. Step 2: Convert to fraction form
    38,349.70/52,921.29 = 21,579.46/x
  3. Step 3: Cross multiply
    38,349.70x = 52,921.29 × 21,579.46
  4. Step 4: Simplify right side
    38,349.70x = 1,142,012,860.70
  5. Step 5: Solve for x
    x = 1,142,012,860.70/38,349.70
  6. Step 6: Final answer
    x = 29,778.93

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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.