Home / 28,536.71-42,820.25-10,779.48

Finding the Fourth Proportional to 28,536.71, 42,820.25 and 10,779.48

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Solution

The fourth proportional to 28,536.71, 42,820.25 and 10,779.48 is: 16,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.71 : 42,820.25 = 10,779.48 : x
  2. Step 2: Convert to fraction form
    28,536.71/42,820.25 = 10,779.48/x
  3. Step 3: Cross multiply
    28,536.71x = 42,820.25 × 10,779.48
  4. Step 4: Simplify right side
    28,536.71x = 461,579,974.57
  5. Step 5: Solve for x
    x = 461,579,974.57/28,536.71
  6. Step 6: Final answer
    x = 16,174.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.