Home / 47,699.04-71,549.91-12,638.70

Finding the Fourth Proportional to 47,699.04, 71,549.91 and 12,638.70

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Solution

The fourth proportional to 47,699.04, 71,549.91 and 12,638.70 is: 18,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,699.04 : 71,549.91 = 12,638.70 : x
  2. Step 2: Convert to fraction form
    47,699.04/71,549.91 = 12,638.70/x
  3. Step 3: Cross multiply
    47,699.04x = 71,549.91 × 12,638.70
  4. Step 4: Simplify right side
    47,699.04x = 904,297,847.52
  5. Step 5: Solve for x
    x = 904,297,847.52/47,699.04
  6. Step 6: Final answer
    x = 18,958.41

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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.