Home / 48,003.85-72,009.60-12,943

Finding the Fourth Proportional to 48,003.85, 72,009.60 and 12,943

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Solution

The fourth proportional to 48,003.85, 72,009.60 and 12,943 is: 19,415.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,003.85 : 72,009.60 = 12,943 : x
  2. Step 2: Convert to fraction form
    48,003.85/72,009.60 = 12,943/x
  3. Step 3: Cross multiply
    48,003.85x = 72,009.60 × 12,943
  4. Step 4: Simplify right side
    48,003.85x = 932,020,252.80
  5. Step 5: Solve for x
    x = 932,020,252.80/48,003.85
  6. Step 6: Final answer
    x = 19,415.53

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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.