Home / 37,779.51-52,135.00-20,782.76

Finding the Fourth Proportional to 37,779.51, 52,135.00 and 20,782.76

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Solution

The fourth proportional to 37,779.51, 52,135.00 and 20,782.76 is: 28,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.51 : 52,135.00 = 20,782.76 : x
  2. Step 2: Convert to fraction form
    37,779.51/52,135.00 = 20,782.76/x
  3. Step 3: Cross multiply
    37,779.51x = 52,135.00 × 20,782.76
  4. Step 4: Simplify right side
    37,779.51x = 1,083,509,539.30
  5. Step 5: Solve for x
    x = 1,083,509,539.30/37,779.51
  6. Step 6: Final answer
    x = 28,679.82

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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.