Home / 28,507.64-42,757.38-9,787.32

Finding the Fourth Proportional to 28,507.64, 42,757.38 and 9,787.32

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Solution

The fourth proportional to 28,507.64, 42,757.38 and 9,787.32 is: 14,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,507.64 : 42,757.38 = 9,787.32 : x
  2. Step 2: Convert to fraction form
    28,507.64/42,757.38 = 9,787.32/x
  3. Step 3: Cross multiply
    28,507.64x = 42,757.38 × 9,787.32
  4. Step 4: Simplify right side
    28,507.64x = 418,480,160.42
  5. Step 5: Solve for x
    x = 418,480,160.42/28,507.64
  6. Step 6: Final answer
    x = 14,679.58

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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.