Home / 37,779.11-52,139.37-20,784.75

Finding the Fourth Proportional to 37,779.11, 52,139.37 and 20,784.75

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Solution

The fourth proportional to 37,779.11, 52,139.37 and 20,784.75 is: 28,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.11 : 52,139.37 = 20,784.75 : x
  2. Step 2: Convert to fraction form
    37,779.11/52,139.37 = 20,784.75/x
  3. Step 3: Cross multiply
    37,779.11x = 52,139.37 × 20,784.75
  4. Step 4: Simplify right side
    37,779.11x = 1,083,703,966.13
  5. Step 5: Solve for x
    x = 1,083,703,966.13/37,779.11
  6. Step 6: Final answer
    x = 28,685.27

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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.