Home / 27,970.33-38,601.63-15,395.89

Finding the Fourth Proportional to 27,970.33, 38,601.63 and 15,395.89

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Solution

The fourth proportional to 27,970.33, 38,601.63 and 15,395.89 is: 21,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,970.33 : 38,601.63 = 15,395.89 : x
  2. Step 2: Convert to fraction form
    27,970.33/38,601.63 = 15,395.89/x
  3. Step 3: Cross multiply
    27,970.33x = 38,601.63 × 15,395.89
  4. Step 4: Simplify right side
    27,970.33x = 594,306,449.30
  5. Step 5: Solve for x
    x = 594,306,449.30/27,970.33
  6. Step 6: Final answer
    x = 21,247.75

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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.