Home / 28,222.24-42,276.64-13,445.44

Finding the Fourth Proportional to 28,222.24, 42,276.64 and 13,445.44

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Solution

The fourth proportional to 28,222.24, 42,276.64 and 13,445.44 is: 20,141.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.24 : 42,276.64 = 13,445.44 : x
  2. Step 2: Convert to fraction form
    28,222.24/42,276.64 = 13,445.44/x
  3. Step 3: Cross multiply
    28,222.24x = 42,276.64 × 13,445.44
  4. Step 4: Simplify right side
    28,222.24x = 568,428,026.52
  5. Step 5: Solve for x
    x = 568,428,026.52/28,222.24
  6. Step 6: Final answer
    x = 20,141.14

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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.