Home / 27,222.47-37,561.89-15,285.09

Finding the Fourth Proportional to 27,222.47, 37,561.89 and 15,285.09

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Solution

The fourth proportional to 27,222.47, 37,561.89 and 15,285.09 is: 21,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,222.47 : 37,561.89 = 15,285.09 : x
  2. Step 2: Convert to fraction form
    27,222.47/37,561.89 = 15,285.09/x
  3. Step 3: Cross multiply
    27,222.47x = 37,561.89 × 15,285.09
  4. Step 4: Simplify right side
    27,222.47x = 574,136,869.22
  5. Step 5: Solve for x
    x = 574,136,869.22/27,222.47
  6. Step 6: Final answer
    x = 21,090.55

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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.