Home / 30,750.03-42,445.65-18,007.31

Finding the Fourth Proportional to 30,750.03, 42,445.65 and 18,007.31

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Solution

The fourth proportional to 30,750.03, 42,445.65 and 18,007.31 is: 24,856.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,750.03 : 42,445.65 = 18,007.31 : x
  2. Step 2: Convert to fraction form
    30,750.03/42,445.65 = 18,007.31/x
  3. Step 3: Cross multiply
    30,750.03x = 42,445.65 × 18,007.31
  4. Step 4: Simplify right side
    30,750.03x = 764,331,765.47
  5. Step 5: Solve for x
    x = 764,331,765.47/30,750.03
  6. Step 6: Final answer
    x = 24,856.29

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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.