Home / 28,070.10-38,736.48-15,494.82

Finding the Fourth Proportional to 28,070.10, 38,736.48 and 15,494.82

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Solution

The fourth proportional to 28,070.10, 38,736.48 and 15,494.82 is: 21,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.10 : 38,736.48 = 15,494.82 : x
  2. Step 2: Convert to fraction form
    28,070.10/38,736.48 = 15,494.82/x
  3. Step 3: Cross multiply
    28,070.10x = 38,736.48 × 15,494.82
  4. Step 4: Simplify right side
    28,070.10x = 600,214,785.03
  5. Step 5: Solve for x
    x = 600,214,785.03/28,070.10
  6. Step 6: Final answer
    x = 21,382.71

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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.