Home / 34,771.60-47,985-18,855.94

Finding the Fourth Proportional to 34,771.60, 47,985 and 18,855.94

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Solution

The fourth proportional to 34,771.60, 47,985 and 18,855.94 is: 26,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,771.60 : 47,985 = 18,855.94 : x
  2. Step 2: Convert to fraction form
    34,771.60/47,985 = 18,855.94/x
  3. Step 3: Cross multiply
    34,771.60x = 47,985 × 18,855.94
  4. Step 4: Simplify right side
    34,771.60x = 904,802,280.90
  5. Step 5: Solve for x
    x = 904,802,280.90/34,771.60
  6. Step 6: Final answer
    x = 26,021.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.