Home / 27,795.75-38,364.09-17,721.87

Finding the Fourth Proportional to 27,795.75, 38,364.09 and 17,721.87

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Solution

The fourth proportional to 27,795.75, 38,364.09 and 17,721.87 is: 24,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,795.75 : 38,364.09 = 17,721.87 : x
  2. Step 2: Convert to fraction form
    27,795.75/38,364.09 = 17,721.87/x
  3. Step 3: Cross multiply
    27,795.75x = 38,364.09 × 17,721.87
  4. Step 4: Simplify right side
    27,795.75x = 679,883,415.65
  5. Step 5: Solve for x
    x = 679,883,415.65/27,795.75
  6. Step 6: Final answer
    x = 24,459.98

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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.