Home / 28,007.44-38,643.60-15,905.26

Finding the Fourth Proportional to 28,007.44, 38,643.60 and 15,905.26

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Solution

The fourth proportional to 28,007.44, 38,643.60 and 15,905.26 is: 21,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.44 : 38,643.60 = 15,905.26 : x
  2. Step 2: Convert to fraction form
    28,007.44/38,643.60 = 15,905.26/x
  3. Step 3: Cross multiply
    28,007.44x = 38,643.60 × 15,905.26
  4. Step 4: Simplify right side
    28,007.44x = 614,636,505.34
  5. Step 5: Solve for x
    x = 614,636,505.34/28,007.44
  6. Step 6: Final answer
    x = 21,945.47

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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.