Home / 18,260.48-27,390.88-5,780.28

Finding the Fourth Proportional to 18,260.48, 27,390.88 and 5,780.28

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Solution

The fourth proportional to 18,260.48, 27,390.88 and 5,780.28 is: 8,670.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,260.48 : 27,390.88 = 5,780.28 : x
  2. Step 2: Convert to fraction form
    18,260.48/27,390.88 = 5,780.28/x
  3. Step 3: Cross multiply
    18,260.48x = 27,390.88 × 5,780.28
  4. Step 4: Simplify right side
    18,260.48x = 158,326,955.85
  5. Step 5: Solve for x
    x = 158,326,955.85/18,260.48
  6. Step 6: Final answer
    x = 8,670.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.