Home / 38,011.88-52,455.48-21,015.69

Finding the Fourth Proportional to 38,011.88, 52,455.48 and 21,015.69

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Solution

The fourth proportional to 38,011.88, 52,455.48 and 21,015.69 is: 29,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,011.88 : 52,455.48 = 21,015.69 : x
  2. Step 2: Convert to fraction form
    38,011.88/52,455.48 = 21,015.69/x
  3. Step 3: Cross multiply
    38,011.88x = 52,455.48 × 21,015.69
  4. Step 4: Simplify right side
    38,011.88x = 1,102,388,059.65
  5. Step 5: Solve for x
    x = 1,102,388,059.65/38,011.88
  6. Step 6: Final answer
    x = 29,001.14

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Half scale
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Double scale
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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.