Home / 28,256.72-42,357.48-13,461.68

Finding the Fourth Proportional to 28,256.72, 42,357.48 and 13,461.68

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Solution

The fourth proportional to 28,256.72, 42,357.48 and 13,461.68 is: 20,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.72 : 42,357.48 = 13,461.68 : x
  2. Step 2: Convert to fraction form
    28,256.72/42,357.48 = 13,461.68/x
  3. Step 3: Cross multiply
    28,256.72x = 42,357.48 × 13,461.68
  4. Step 4: Simplify right side
    28,256.72x = 570,202,841.37
  5. Step 5: Solve for x
    x = 570,202,841.37/28,256.72
  6. Step 6: Final answer
    x = 20,179.37

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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.