Home / 27,970.72-38,599.68-15,395.47

Finding the Fourth Proportional to 27,970.72, 38,599.68 and 15,395.47

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Solution

The fourth proportional to 27,970.72, 38,599.68 and 15,395.47 is: 21,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,970.72 : 38,599.68 = 15,395.47 : x
  2. Step 2: Convert to fraction form
    27,970.72/38,599.68 = 15,395.47/x
  3. Step 3: Cross multiply
    27,970.72x = 38,599.68 × 15,395.47
  4. Step 4: Simplify right side
    27,970.72x = 594,260,215.45
  5. Step 5: Solve for x
    x = 594,260,215.45/27,970.72
  6. Step 6: Final answer
    x = 21,245.80

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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.