Home / 18,783.74-28,176.51-15,490.82

Finding the Fourth Proportional to 18,783.74, 28,176.51 and 15,490.82

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Solution

The fourth proportional to 18,783.74, 28,176.51 and 15,490.82 is: 23,236.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.74 : 28,176.51 = 15,490.82 : x
  2. Step 2: Convert to fraction form
    18,783.74/28,176.51 = 15,490.82/x
  3. Step 3: Cross multiply
    18,783.74x = 28,176.51 × 15,490.82
  4. Step 4: Simplify right side
    18,783.74x = 436,477,244.64
  5. Step 5: Solve for x
    x = 436,477,244.64/18,783.74
  6. Step 6: Final answer
    x = 23,236.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.