Home / 37,779.51-52,134.08-20,782.68

Finding the Fourth Proportional to 37,779.51, 52,134.08 and 20,782.68

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Solution

The fourth proportional to 37,779.51, 52,134.08 and 20,782.68 is: 28,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.51 : 52,134.08 = 20,782.68 : x
  2. Step 2: Convert to fraction form
    37,779.51/52,134.08 = 20,782.68/x
  3. Step 3: Cross multiply
    37,779.51x = 52,134.08 × 20,782.68
  4. Step 4: Simplify right side
    37,779.51x = 1,083,485,901.73
  5. Step 5: Solve for x
    x = 1,083,485,901.73/37,779.51
  6. Step 6: Final answer
    x = 28,679.19

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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.