Home / 28,104.57-38,783.83-15,357.47

Finding the Fourth Proportional to 28,104.57, 38,783.83 and 15,357.47

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Solution

The fourth proportional to 28,104.57, 38,783.83 and 15,357.47 is: 21,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.57 : 38,783.83 = 15,357.47 : x
  2. Step 2: Convert to fraction form
    28,104.57/38,783.83 = 15,357.47/x
  3. Step 3: Cross multiply
    28,104.57x = 38,783.83 × 15,357.47
  4. Step 4: Simplify right side
    28,104.57x = 595,621,505.71
  5. Step 5: Solve for x
    x = 595,621,505.71/28,104.57
  6. Step 6: Final answer
    x = 21,193.05

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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.