Home / 27,961.31-38,586.61-15,386.06

Finding the Fourth Proportional to 27,961.31, 38,586.61 and 15,386.06

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Solution

The fourth proportional to 27,961.31, 38,586.61 and 15,386.06 is: 21,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,961.31 : 38,586.61 = 15,386.06 : x
  2. Step 2: Convert to fraction form
    27,961.31/38,586.61 = 15,386.06/x
  3. Step 3: Cross multiply
    27,961.31x = 38,586.61 × 15,386.06
  4. Step 4: Simplify right side
    27,961.31x = 593,696,012.36
  5. Step 5: Solve for x
    x = 593,696,012.36/27,961.31
  6. Step 6: Final answer
    x = 21,232.77

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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.