Home / 28,204.96-38,924.40-15,629.44

Finding the Fourth Proportional to 28,204.96, 38,924.40 and 15,629.44

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Solution

The fourth proportional to 28,204.96, 38,924.40 and 15,629.44 is: 21,569.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.96 : 38,924.40 = 15,629.44 : x
  2. Step 2: Convert to fraction form
    28,204.96/38,924.40 = 15,629.44/x
  3. Step 3: Cross multiply
    28,204.96x = 38,924.40 × 15,629.44
  4. Step 4: Simplify right side
    28,204.96x = 608,366,574.34
  5. Step 5: Solve for x
    x = 608,366,574.34/28,204.96
  6. Step 6: Final answer
    x = 21,569.49

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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.