Home / 37,779.29-52,133.36-20,780.79

Finding the Fourth Proportional to 37,779.29, 52,133.36 and 20,780.79

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Solution

The fourth proportional to 37,779.29, 52,133.36 and 20,780.79 is: 28,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.29 : 52,133.36 = 20,780.79 : x
  2. Step 2: Convert to fraction form
    37,779.29/52,133.36 = 20,780.79/x
  3. Step 3: Cross multiply
    37,779.29x = 52,133.36 × 20,780.79
  4. Step 4: Simplify right side
    37,779.29x = 1,083,372,106.75
  5. Step 5: Solve for x
    x = 1,083,372,106.75/37,779.29
  6. Step 6: Final answer
    x = 28,676.35

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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.