Home / 27,970.60-38,599.38-15,395.35

Finding the Fourth Proportional to 27,970.60, 38,599.38 and 15,395.35

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Solution

The fourth proportional to 27,970.60, 38,599.38 and 15,395.35 is: 21,245.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,970.60 : 38,599.38 = 15,395.35 : x
  2. Step 2: Convert to fraction form
    27,970.60/38,599.38 = 15,395.35/x
  3. Step 3: Cross multiply
    27,970.60x = 38,599.38 × 15,395.35
  4. Step 4: Simplify right side
    27,970.60x = 594,250,964.88
  5. Step 5: Solve for x
    x = 594,250,964.88/27,970.60
  6. Step 6: Final answer
    x = 21,245.56

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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.