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Finding the Fourth Proportional to 28,953.60, 43,432.80 and 9,231.60

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Solution

The fourth proportional to 28,953.60, 43,432.80 and 9,231.60 is: 13,848.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953.60 : 43,432.80 = 9,231.60 : x
  2. Step 2: Convert to fraction form
    28,953.60/43,432.80 = 9,231.60/x
  3. Step 3: Cross multiply
    28,953.60x = 43,432.80 × 9,231.60
  4. Step 4: Simplify right side
    28,953.60x = 400,954,236.48
  5. Step 5: Solve for x
    x = 400,954,236.48/28,953.60
  6. Step 6: Final answer
    x = 13,848.17

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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.