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Finding the Fourth Proportional to 47,649.93, 71,477.46 and 12,588.63

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Solution

The fourth proportional to 47,649.93, 71,477.46 and 12,588.63 is: 18,883.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,649.93 : 71,477.46 = 12,588.63 : x
  2. Step 2: Convert to fraction form
    47,649.93/71,477.46 = 12,588.63/x
  3. Step 3: Cross multiply
    47,649.93x = 71,477.46 × 12,588.63
  4. Step 4: Simplify right side
    47,649.93x = 899,803,297.28
  5. Step 5: Solve for x
    x = 899,803,297.28/47,649.93
  6. Step 6: Final answer
    x = 18,883.62

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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.