Home / 37,779.92-52,138.04-21,861.28

Finding the Fourth Proportional to 37,779.92, 52,138.04 and 21,861.28

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Solution

The fourth proportional to 37,779.92, 52,138.04 and 21,861.28 is: 30,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.92 : 52,138.04 = 21,861.28 : x
  2. Step 2: Convert to fraction form
    37,779.92/52,138.04 = 21,861.28/x
  3. Step 3: Cross multiply
    37,779.92x = 52,138.04 × 21,861.28
  4. Step 4: Simplify right side
    37,779.92x = 1,139,804,291.09
  5. Step 5: Solve for x
    x = 1,139,804,291.09/37,779.92
  6. Step 6: Final answer
    x = 30,169.58

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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.