Home / 28,664.76-42,953.30-12,015.71

Finding the Fourth Proportional to 28,664.76, 42,953.30 and 12,015.71

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Solution

The fourth proportional to 28,664.76, 42,953.30 and 12,015.71 is: 18,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.76 : 42,953.30 = 12,015.71 : x
  2. Step 2: Convert to fraction form
    28,664.76/42,953.30 = 12,015.71/x
  3. Step 3: Cross multiply
    28,664.76x = 42,953.30 × 12,015.71
  4. Step 4: Simplify right side
    28,664.76x = 516,114,396.34
  5. Step 5: Solve for x
    x = 516,114,396.34/28,664.76
  6. Step 6: Final answer
    x = 18,005.19

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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.