Home / 30,787.52-42,486.48-17,175.68

Finding the Fourth Proportional to 30,787.52, 42,486.48 and 17,175.68

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Solution

The fourth proportional to 30,787.52, 42,486.48 and 17,175.68 is: 23,702.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,787.52 : 42,486.48 = 17,175.68 : x
  2. Step 2: Convert to fraction form
    30,787.52/42,486.48 = 17,175.68/x
  3. Step 3: Cross multiply
    30,787.52x = 42,486.48 × 17,175.68
  4. Step 4: Simplify right side
    30,787.52x = 729,734,184.81
  5. Step 5: Solve for x
    x = 729,734,184.81/30,787.52
  6. Step 6: Final answer
    x = 23,702.27

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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.