Home / 27,812.23-38,386.20-21,750.46

Finding the Fourth Proportional to 27,812.23, 38,386.20 and 21,750.46

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Solution

The fourth proportional to 27,812.23, 38,386.20 and 21,750.46 is: 30,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,812.23 : 38,386.20 = 21,750.46 : x
  2. Step 2: Convert to fraction form
    27,812.23/38,386.20 = 21,750.46/x
  3. Step 3: Cross multiply
    27,812.23x = 38,386.20 × 21,750.46
  4. Step 4: Simplify right side
    27,812.23x = 834,917,507.65
  5. Step 5: Solve for x
    x = 834,917,507.65/27,812.23
  6. Step 6: Final answer
    x = 30,019.80

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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.