Home / 37,783.72-52,140.67-20,788.30

Finding the Fourth Proportional to 37,783.72, 52,140.67 and 20,788.30

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Solution

The fourth proportional to 37,783.72, 52,140.67 and 20,788.30 is: 28,687.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,783.72 : 52,140.67 = 20,788.30 : x
  2. Step 2: Convert to fraction form
    37,783.72/52,140.67 = 20,788.30/x
  3. Step 3: Cross multiply
    37,783.72x = 52,140.67 × 20,788.30
  4. Step 4: Simplify right side
    37,783.72x = 1,083,915,890.16
  5. Step 5: Solve for x
    x = 1,083,915,890.16/37,783.72
  6. Step 6: Final answer
    x = 28,687.38

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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.