Home / 37,775.42-52,128.98-20,779.67

Finding the Fourth Proportional to 37,775.42, 52,128.98 and 20,779.67

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Solution

The fourth proportional to 37,775.42, 52,128.98 and 20,779.67 is: 28,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,775.42 : 52,128.98 = 20,779.67 : x
  2. Step 2: Convert to fraction form
    37,775.42/52,128.98 = 20,779.67/x
  3. Step 3: Cross multiply
    37,775.42x = 52,128.98 × 20,779.67
  4. Step 4: Simplify right side
    37,775.42x = 1,083,222,637.29
  5. Step 5: Solve for x
    x = 1,083,222,637.29/37,775.42
  6. Step 6: Final answer
    x = 28,675.33

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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.