Home / 38,085.10-57,130.08-11,787.64

Finding the Fourth Proportional to 38,085.10, 57,130.08 and 11,787.64

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Solution

The fourth proportional to 38,085.10, 57,130.08 and 11,787.64 is: 17,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,085.10 : 57,130.08 = 11,787.64 : x
  2. Step 2: Convert to fraction form
    38,085.10/57,130.08 = 11,787.64/x
  3. Step 3: Cross multiply
    38,085.10x = 57,130.08 × 11,787.64
  4. Step 4: Simplify right side
    38,085.10x = 673,428,816.21
  5. Step 5: Solve for x
    x = 673,428,816.21/38,085.10
  6. Step 6: Final answer
    x = 17,682.21

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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.