Home / 22,783.50-31,444.47-21,787.20

Finding the Fourth Proportional to 22,783.50, 31,444.47 and 21,787.20

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Solution

The fourth proportional to 22,783.50, 31,444.47 and 21,787.20 is: 30,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,783.50 : 31,444.47 = 21,787.20 : x
  2. Step 2: Convert to fraction form
    22,783.50/31,444.47 = 21,787.20/x
  3. Step 3: Cross multiply
    22,783.50x = 31,444.47 × 21,787.20
  4. Step 4: Simplify right side
    22,783.50x = 685,086,956.78
  5. Step 5: Solve for x
    x = 685,086,956.78/22,783.50
  6. Step 6: Final answer
    x = 30,069.43

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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.