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Finding the Fourth Proportional to 28,820.88, 43,232.40 and 13,022.88

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Solution

The fourth proportional to 28,820.88, 43,232.40 and 13,022.88 is: 19,534.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.88 : 43,232.40 = 13,022.88 : x
  2. Step 2: Convert to fraction form
    28,820.88/43,232.40 = 13,022.88/x
  3. Step 3: Cross multiply
    28,820.88x = 43,232.40 × 13,022.88
  4. Step 4: Simplify right side
    28,820.88x = 563,010,357.31
  5. Step 5: Solve for x
    x = 563,010,357.31/28,820.88
  6. Step 6: Final answer
    x = 19,534.81

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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.