Home / 27,865.14-38,450.28-15,929.26

Finding the Fourth Proportional to 27,865.14, 38,450.28 and 15,929.26

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Solution

The fourth proportional to 27,865.14, 38,450.28 and 15,929.26 is: 21,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.14 : 38,450.28 = 15,929.26 : x
  2. Step 2: Convert to fraction form
    27,865.14/38,450.28 = 15,929.26/x
  3. Step 3: Cross multiply
    27,865.14x = 38,450.28 × 15,929.26
  4. Step 4: Simplify right side
    27,865.14x = 612,484,507.19
  5. Step 5: Solve for x
    x = 612,484,507.19/27,865.14
  6. Step 6: Final answer
    x = 21,980.31

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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.