Home / 30,757.60-42,449.52-17,331.45

Finding the Fourth Proportional to 30,757.60, 42,449.52 and 17,331.45

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Solution

The fourth proportional to 30,757.60, 42,449.52 and 17,331.45 is: 23,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,757.60 : 42,449.52 = 17,331.45 : x
  2. Step 2: Convert to fraction form
    30,757.60/42,449.52 = 17,331.45/x
  3. Step 3: Cross multiply
    30,757.60x = 42,449.52 × 17,331.45
  4. Step 4: Simplify right side
    30,757.60x = 735,711,733.40
  5. Step 5: Solve for x
    x = 735,711,733.40/30,757.60
  6. Step 6: Final answer
    x = 23,919.67

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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.