Home / 28,256.33-42,332.83-13,235.87

Finding the Fourth Proportional to 28,256.33, 42,332.83 and 13,235.87

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Solution

The fourth proportional to 28,256.33, 42,332.83 and 13,235.87 is: 19,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.33 : 42,332.83 = 13,235.87 : x
  2. Step 2: Convert to fraction form
    28,256.33/42,332.83 = 13,235.87/x
  3. Step 3: Cross multiply
    28,256.33x = 42,332.83 × 13,235.87
  4. Step 4: Simplify right side
    28,256.33x = 560,311,834.61
  5. Step 5: Solve for x
    x = 560,311,834.61/28,256.33
  6. Step 6: Final answer
    x = 19,829.60

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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.