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Finding the Fourth Proportional to 27,260.80, 40,840.80 and 15,539.20

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Solution

The fourth proportional to 27,260.80, 40,840.80 and 15,539.20 is: 23,280.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,260.80 : 40,840.80 = 15,539.20 : x
  2. Step 2: Convert to fraction form
    27,260.80/40,840.80 = 15,539.20/x
  3. Step 3: Cross multiply
    27,260.80x = 40,840.80 × 15,539.20
  4. Step 4: Simplify right side
    27,260.80x = 634,633,359.36
  5. Step 5: Solve for x
    x = 634,633,359.36/27,260.80
  6. Step 6: Final answer
    x = 23,280.07

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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.