Home / 20,732.04-28,610.76-12,779.52

Finding the Fourth Proportional to 20,732.04, 28,610.76 and 12,779.52

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Solution

The fourth proportional to 20,732.04, 28,610.76 and 12,779.52 is: 17,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.04 : 28,610.76 = 12,779.52 : x
  2. Step 2: Convert to fraction form
    20,732.04/28,610.76 = 12,779.52/x
  3. Step 3: Cross multiply
    20,732.04x = 28,610.76 × 12,779.52
  4. Step 4: Simplify right side
    20,732.04x = 365,631,779.64
  5. Step 5: Solve for x
    x = 365,631,779.64/20,732.04
  6. Step 6: Final answer
    x = 17,636.07

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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.