Home / 28,148.82-38,844.90-15,573.60

Finding the Fourth Proportional to 28,148.82, 38,844.90 and 15,573.60

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Solution

The fourth proportional to 28,148.82, 38,844.90 and 15,573.60 is: 21,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.82 : 38,844.90 = 15,573.60 : x
  2. Step 2: Convert to fraction form
    28,148.82/38,844.90 = 15,573.60/x
  3. Step 3: Cross multiply
    28,148.82x = 38,844.90 × 15,573.60
  4. Step 4: Simplify right side
    28,148.82x = 604,954,934.64
  5. Step 5: Solve for x
    x = 604,954,934.64/28,148.82
  6. Step 6: Final answer
    x = 21,491.31

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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.