Home / 38,203.91-52,720.03-21,208.90

Finding the Fourth Proportional to 38,203.91, 52,720.03 and 21,208.90

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Solution

The fourth proportional to 38,203.91, 52,720.03 and 21,208.90 is: 29,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,203.91 : 52,720.03 = 21,208.90 : x
  2. Step 2: Convert to fraction form
    38,203.91/52,720.03 = 21,208.90/x
  3. Step 3: Cross multiply
    38,203.91x = 52,720.03 × 21,208.90
  4. Step 4: Simplify right side
    38,203.91x = 1,118,133,844.27
  5. Step 5: Solve for x
    x = 1,118,133,844.27/38,203.91
  6. Step 6: Final answer
    x = 29,267.52

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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.