Home / 37,783.68-52,141.48-20,787.56

Finding the Fourth Proportional to 37,783.68, 52,141.48 and 20,787.56

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Solution

The fourth proportional to 37,783.68, 52,141.48 and 20,787.56 is: 28,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,783.68 : 52,141.48 = 20,787.56 : x
  2. Step 2: Convert to fraction form
    37,783.68/52,141.48 = 20,787.56/x
  3. Step 3: Cross multiply
    37,783.68x = 52,141.48 × 20,787.56
  4. Step 4: Simplify right side
    37,783.68x = 1,083,893,831.31
  5. Step 5: Solve for x
    x = 1,083,893,831.31/37,783.68
  6. Step 6: Final answer
    x = 28,686.82

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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.