Home / 28,724.28-43,086.96-9,002.40

Finding the Fourth Proportional to 28,724.28, 43,086.96 and 9,002.40

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Solution

The fourth proportional to 28,724.28, 43,086.96 and 9,002.40 is: 13,503.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.28 : 43,086.96 = 9,002.40 : x
  2. Step 2: Convert to fraction form
    28,724.28/43,086.96 = 9,002.40/x
  3. Step 3: Cross multiply
    28,724.28x = 43,086.96 × 9,002.40
  4. Step 4: Simplify right side
    28,724.28x = 387,886,048.70
  5. Step 5: Solve for x
    x = 387,886,048.70/28,724.28
  6. Step 6: Final answer
    x = 13,503.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.