Home / 38,926.65-53,718.78-21,021.66

Finding the Fourth Proportional to 38,926.65, 53,718.78 and 21,021.66

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Solution

The fourth proportional to 38,926.65, 53,718.78 and 21,021.66 is: 29,009.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,926.65 : 53,718.78 = 21,021.66 : x
  2. Step 2: Convert to fraction form
    38,926.65/53,718.78 = 21,021.66/x
  3. Step 3: Cross multiply
    38,926.65x = 53,718.78 × 21,021.66
  4. Step 4: Simplify right side
    38,926.65x = 1,129,257,889.36
  5. Step 5: Solve for x
    x = 1,129,257,889.36/38,926.65
  6. Step 6: Final answer
    x = 29,009.89

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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.