Home / 27,084.29-37,386.37-20,389.34

Finding the Fourth Proportional to 27,084.29, 37,386.37 and 20,389.34

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Solution

The fourth proportional to 27,084.29, 37,386.37 and 20,389.34 is: 28,144.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,084.29 : 37,386.37 = 20,389.34 : x
  2. Step 2: Convert to fraction form
    27,084.29/37,386.37 = 20,389.34/x
  3. Step 3: Cross multiply
    27,084.29x = 37,386.37 × 20,389.34
  4. Step 4: Simplify right side
    27,084.29x = 762,283,222.36
  5. Step 5: Solve for x
    x = 762,283,222.36/27,084.29
  6. Step 6: Final answer
    x = 28,144.85

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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.