Home / 38,435.99-53,040.22-21,439.96

Finding the Fourth Proportional to 38,435.99, 53,040.22 and 21,439.96

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Solution

The fourth proportional to 38,435.99, 53,040.22 and 21,439.96 is: 29,586.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.99 : 53,040.22 = 21,439.96 : x
  2. Step 2: Convert to fraction form
    38,435.99/53,040.22 = 21,439.96/x
  3. Step 3: Cross multiply
    38,435.99x = 53,040.22 × 21,439.96
  4. Step 4: Simplify right side
    38,435.99x = 1,137,180,008.99
  5. Step 5: Solve for x
    x = 1,137,180,008.99/38,435.99
  6. Step 6: Final answer
    x = 29,586.34

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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.