Home / 30,986.87-42,761.76-17,560.68

Finding the Fourth Proportional to 30,986.87, 42,761.76 and 17,560.68

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Solution

The fourth proportional to 30,986.87, 42,761.76 and 17,560.68 is: 24,233.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986.87 : 42,761.76 = 17,560.68 : x
  2. Step 2: Convert to fraction form
    30,986.87/42,761.76 = 17,560.68/x
  3. Step 3: Cross multiply
    30,986.87x = 42,761.76 × 17,560.68
  4. Step 4: Simplify right side
    30,986.87x = 750,925,495.79
  5. Step 5: Solve for x
    x = 750,925,495.79/30,986.87
  6. Step 6: Final answer
    x = 24,233.67

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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.