Home / 37,779.61-52,135.89-20,785.16

Finding the Fourth Proportional to 37,779.61, 52,135.89 and 20,785.16

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Solution

The fourth proportional to 37,779.61, 52,135.89 and 20,785.16 is: 28,683.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.61 : 52,135.89 = 20,785.16 : x
  2. Step 2: Convert to fraction form
    37,779.61/52,135.89 = 20,785.16/x
  3. Step 3: Cross multiply
    37,779.61x = 52,135.89 × 20,785.16
  4. Step 4: Simplify right side
    37,779.61x = 1,083,652,815.39
  5. Step 5: Solve for x
    x = 1,083,652,815.39/37,779.61
  6. Step 6: Final answer
    x = 28,683.54

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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.