Home / 30,787.48-42,458.34-23,100.04

Finding the Fourth Proportional to 30,787.48, 42,458.34 and 23,100.04

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Solution

The fourth proportional to 30,787.48, 42,458.34 and 23,100.04 is: 31,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,787.48 : 42,458.34 = 23,100.04 : x
  2. Step 2: Convert to fraction form
    30,787.48/42,458.34 = 23,100.04/x
  3. Step 3: Cross multiply
    30,787.48x = 42,458.34 × 23,100.04
  4. Step 4: Simplify right side
    30,787.48x = 980,789,352.33
  5. Step 5: Solve for x
    x = 980,789,352.33/30,787.48
  6. Step 6: Final answer
    x = 31,856.76

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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.