Home / 28,689.87-43,035.21-7,630.27

Finding the Fourth Proportional to 28,689.87, 43,035.21 and 7,630.27

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Solution

The fourth proportional to 28,689.87, 43,035.21 and 7,630.27 is: 11,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.87 : 43,035.21 = 7,630.27 : x
  2. Step 2: Convert to fraction form
    28,689.87/43,035.21 = 7,630.27/x
  3. Step 3: Cross multiply
    28,689.87x = 43,035.21 × 7,630.27
  4. Step 4: Simplify right side
    28,689.87x = 328,370,271.81
  5. Step 5: Solve for x
    x = 328,370,271.81/28,689.87
  6. Step 6: Final answer
    x = 11,445.51

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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.