Home / 25,455.31-35,135-14,280.91

Finding the Fourth Proportional to 25,455.31, 35,135 and 14,280.91

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Solution

The fourth proportional to 25,455.31, 35,135 and 14,280.91 is: 19,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,455.31 : 35,135 = 14,280.91 : x
  2. Step 2: Convert to fraction form
    25,455.31/35,135 = 14,280.91/x
  3. Step 3: Cross multiply
    25,455.31x = 35,135 × 14,280.91
  4. Step 4: Simplify right side
    25,455.31x = 501,759,772.85
  5. Step 5: Solve for x
    x = 501,759,772.85/25,455.31
  6. Step 6: Final answer
    x = 19,711.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.