Home / 47,705.36-71,549.93-12,648.56

Finding the Fourth Proportional to 47,705.36, 71,549.93 and 12,648.56

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Solution

The fourth proportional to 47,705.36, 71,549.93 and 12,648.56 is: 18,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,705.36 : 71,549.93 = 12,648.56 : x
  2. Step 2: Convert to fraction form
    47,705.36/71,549.93 = 12,648.56/x
  3. Step 3: Cross multiply
    47,705.36x = 71,549.93 × 12,648.56
  4. Step 4: Simplify right side
    47,705.36x = 905,003,256.47
  5. Step 5: Solve for x
    x = 905,003,256.47/47,705.36
  6. Step 6: Final answer
    x = 18,970.68

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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.