Home / 28,820.48-43,230.69-9,100.71

Finding the Fourth Proportional to 28,820.48, 43,230.69 and 9,100.71

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Solution

The fourth proportional to 28,820.48, 43,230.69 and 9,100.71 is: 13,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.48 : 43,230.69 = 9,100.71 : x
  2. Step 2: Convert to fraction form
    28,820.48/43,230.69 = 9,100.71/x
  3. Step 3: Cross multiply
    28,820.48x = 43,230.69 × 9,100.71
  4. Step 4: Simplify right side
    28,820.48x = 393,429,972.79
  5. Step 5: Solve for x
    x = 393,429,972.79/28,820.48
  6. Step 6: Final answer
    x = 13,651.06

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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.