Home / 37,775.31-52,128.86-20,779.53

Finding the Fourth Proportional to 37,775.31, 52,128.86 and 20,779.53

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Solution

The fourth proportional to 37,775.31, 52,128.86 and 20,779.53 is: 28,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,775.31 : 52,128.86 = 20,779.53 : x
  2. Step 2: Convert to fraction form
    37,775.31/52,128.86 = 20,779.53/x
  3. Step 3: Cross multiply
    37,775.31x = 52,128.86 × 20,779.53
  4. Step 4: Simplify right side
    37,775.31x = 1,083,213,210.24
  5. Step 5: Solve for x
    x = 1,083,213,210.24/37,775.31
  6. Step 6: Final answer
    x = 28,675.16

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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.