Home / 37,783.72-52,140.81-20,787.54

Finding the Fourth Proportional to 37,783.72, 52,140.81 and 20,787.54

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Solution

The fourth proportional to 37,783.72, 52,140.81 and 20,787.54 is: 28,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,783.72 : 52,140.81 = 20,787.54 : x
  2. Step 2: Convert to fraction form
    37,783.72/52,140.81 = 20,787.54/x
  3. Step 3: Cross multiply
    37,783.72x = 52,140.81 × 20,787.54
  4. Step 4: Simplify right side
    37,783.72x = 1,083,879,055.93
  5. Step 5: Solve for x
    x = 1,083,879,055.93/37,783.72
  6. Step 6: Final answer
    x = 28,686.41

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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.