Home / 28,933.16-43,406.40-12,293.72

Finding the Fourth Proportional to 28,933.16, 43,406.40 and 12,293.72

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Solution

The fourth proportional to 28,933.16, 43,406.40 and 12,293.72 is: 18,443.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,933.16 : 43,406.40 = 12,293.72 : x
  2. Step 2: Convert to fraction form
    28,933.16/43,406.40 = 12,293.72/x
  3. Step 3: Cross multiply
    28,933.16x = 43,406.40 × 12,293.72
  4. Step 4: Simplify right side
    28,933.16x = 533,626,127.81
  5. Step 5: Solve for x
    x = 533,626,127.81/28,933.16
  6. Step 6: Final answer
    x = 18,443.41

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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.