Home / 22,787.13-31,448.01-12,580.16

Finding the Fourth Proportional to 22,787.13, 31,448.01 and 12,580.16

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Solution

The fourth proportional to 22,787.13, 31,448.01 and 12,580.16 is: 17,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,787.13 : 31,448.01 = 12,580.16 : x
  2. Step 2: Convert to fraction form
    22,787.13/31,448.01 = 12,580.16/x
  3. Step 3: Cross multiply
    22,787.13x = 31,448.01 × 12,580.16
  4. Step 4: Simplify right side
    22,787.13x = 395,621,076.10
  5. Step 5: Solve for x
    x = 395,621,076.10/22,787.13
  6. Step 6: Final answer
    x = 17,361.60

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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.