Home / 38,216.16-52,739.94-21,220.40

Finding the Fourth Proportional to 38,216.16, 52,739.94 and 21,220.40

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Solution

The fourth proportional to 38,216.16, 52,739.94 and 21,220.40 is: 29,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,216.16 : 52,739.94 = 21,220.40 : x
  2. Step 2: Convert to fraction form
    38,216.16/52,739.94 = 21,220.40/x
  3. Step 3: Cross multiply
    38,216.16x = 52,739.94 × 21,220.40
  4. Step 4: Simplify right side
    38,216.16x = 1,119,162,622.78
  5. Step 5: Solve for x
    x = 1,119,162,622.78/38,216.16
  6. Step 6: Final answer
    x = 29,285.06

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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.