Home / 17,478.28-24,120.29-9,520.50

Finding the Fourth Proportional to 17,478.28, 24,120.29 and 9,520.50

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Solution

The fourth proportional to 17,478.28, 24,120.29 and 9,520.50 is: 13,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,478.28 : 24,120.29 = 9,520.50 : x
  2. Step 2: Convert to fraction form
    17,478.28/24,120.29 = 9,520.50/x
  3. Step 3: Cross multiply
    17,478.28x = 24,120.29 × 9,520.50
  4. Step 4: Simplify right side
    17,478.28x = 229,637,220.95
  5. Step 5: Solve for x
    x = 229,637,220.95/17,478.28
  6. Step 6: Final answer
    x = 13,138.43

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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.