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Finding the Fourth Proportional to 48,009.80, 72,014.76 and 12,949.49

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Solution

The fourth proportional to 48,009.80, 72,014.76 and 12,949.49 is: 19,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,009.80 : 72,014.76 = 12,949.49 : x
  2. Step 2: Convert to fraction form
    48,009.80/72,014.76 = 12,949.49/x
  3. Step 3: Cross multiply
    48,009.80x = 72,014.76 × 12,949.49
  4. Step 4: Simplify right side
    48,009.80x = 932,554,054.40
  5. Step 5: Solve for x
    x = 932,554,054.40/48,009.80
  6. Step 6: Final answer
    x = 19,424.25

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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.