Home / 38,381.70-57,466.23-19,621.32

Finding the Fourth Proportional to 38,381.70, 57,466.23 and 19,621.32

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Solution

The fourth proportional to 38,381.70, 57,466.23 and 19,621.32 is: 29,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,381.70 : 57,466.23 = 19,621.32 : x
  2. Step 2: Convert to fraction form
    38,381.70/57,466.23 = 19,621.32/x
  3. Step 3: Cross multiply
    38,381.70x = 57,466.23 × 19,621.32
  4. Step 4: Simplify right side
    38,381.70x = 1,127,563,288.02
  5. Step 5: Solve for x
    x = 1,127,563,288.02/38,381.70
  6. Step 6: Final answer
    x = 29,377.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.