Home / 28,681.35-43,023.92-7,621.09

Finding the Fourth Proportional to 28,681.35, 43,023.92 and 7,621.09

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Solution

The fourth proportional to 28,681.35, 43,023.92 and 7,621.09 is: 11,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.35 : 43,023.92 = 7,621.09 : x
  2. Step 2: Convert to fraction form
    28,681.35/43,023.92 = 7,621.09/x
  3. Step 3: Cross multiply
    28,681.35x = 43,023.92 × 7,621.09
  4. Step 4: Simplify right side
    28,681.35x = 327,889,020.81
  5. Step 5: Solve for x
    x = 327,889,020.81/28,681.35
  6. Step 6: Final answer
    x = 11,432.13

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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.