Home / 37,779.40-52,133.96-20,782.56

Finding the Fourth Proportional to 37,779.40, 52,133.96 and 20,782.56

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Solution

The fourth proportional to 37,779.40, 52,133.96 and 20,782.56 is: 28,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.40 : 52,133.96 = 20,782.56 : x
  2. Step 2: Convert to fraction form
    37,779.40/52,133.96 = 20,782.56/x
  3. Step 3: Cross multiply
    37,779.40x = 52,133.96 × 20,782.56
  4. Step 4: Simplify right side
    37,779.40x = 1,083,477,151.74
  5. Step 5: Solve for x
    x = 1,083,477,151.74/37,779.40
  6. Step 6: Final answer
    x = 28,679.05

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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.