Home / 18,889.32-28,290.87-9,035.55

Finding the Fourth Proportional to 18,889.32, 28,290.87 and 9,035.55

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Solution

The fourth proportional to 18,889.32, 28,290.87 and 9,035.55 is: 13,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.32 : 28,290.87 = 9,035.55 : x
  2. Step 2: Convert to fraction form
    18,889.32/28,290.87 = 9,035.55/x
  3. Step 3: Cross multiply
    18,889.32x = 28,290.87 × 9,035.55
  4. Step 4: Simplify right side
    18,889.32x = 255,623,570.43
  5. Step 5: Solve for x
    x = 255,623,570.43/18,889.32
  6. Step 6: Final answer
    x = 13,532.70

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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.