Home / 27,747.13-38,285.37-15,807.33

Finding the Fourth Proportional to 27,747.13, 38,285.37 and 15,807.33

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Solution

The fourth proportional to 27,747.13, 38,285.37 and 15,807.33 is: 21,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,747.13 : 38,285.37 = 15,807.33 : x
  2. Step 2: Convert to fraction form
    27,747.13/38,285.37 = 15,807.33/x
  3. Step 3: Cross multiply
    27,747.13x = 38,285.37 × 15,807.33
  4. Step 4: Simplify right side
    27,747.13x = 605,189,477.76
  5. Step 5: Solve for x
    x = 605,189,477.76/27,747.13
  6. Step 6: Final answer
    x = 21,810.89

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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.