Home / 30,615.87-42,247.01-17,184.50

Finding the Fourth Proportional to 30,615.87, 42,247.01 and 17,184.50

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Solution

The fourth proportional to 30,615.87, 42,247.01 and 17,184.50 is: 23,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.87 : 42,247.01 = 17,184.50 : x
  2. Step 2: Convert to fraction form
    30,615.87/42,247.01 = 17,184.50/x
  3. Step 3: Cross multiply
    30,615.87x = 42,247.01 × 17,184.50
  4. Step 4: Simplify right side
    30,615.87x = 725,993,493.85
  5. Step 5: Solve for x
    x = 725,993,493.85/30,615.87
  6. Step 6: Final answer
    x = 23,712.98

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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.