Home / 38,443.40-57,666.83-11,787.44

Finding the Fourth Proportional to 38,443.40, 57,666.83 and 11,787.44

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Solution

The fourth proportional to 38,443.40, 57,666.83 and 11,787.44 is: 17,681.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.40 : 57,666.83 = 11,787.44 : x
  2. Step 2: Convert to fraction form
    38,443.40/57,666.83 = 11,787.44/x
  3. Step 3: Cross multiply
    38,443.40x = 57,666.83 × 11,787.44
  4. Step 4: Simplify right side
    38,443.40x = 679,744,203.81
  5. Step 5: Solve for x
    x = 679,744,203.81/38,443.40
  6. Step 6: Final answer
    x = 17,681.69

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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.