Home / 28,520.56-39,357.72-15,946.48

Finding the Fourth Proportional to 28,520.56, 39,357.72 and 15,946.48

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Solution

The fourth proportional to 28,520.56, 39,357.72 and 15,946.48 is: 22,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.56 : 39,357.72 = 15,946.48 : x
  2. Step 2: Convert to fraction form
    28,520.56/39,357.72 = 15,946.48/x
  3. Step 3: Cross multiply
    28,520.56x = 39,357.72 × 15,946.48
  4. Step 4: Simplify right side
    28,520.56x = 627,617,094.83
  5. Step 5: Solve for x
    x = 627,617,094.83/28,520.56
  6. Step 6: Final answer
    x = 22,005.78

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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.