Home / 25,513.04-38,272.48-12,355.90

Finding the Fourth Proportional to 25,513.04, 38,272.48 and 12,355.90

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Solution

The fourth proportional to 25,513.04, 38,272.48 and 12,355.90 is: 18,535.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,513.04 : 38,272.48 = 12,355.90 : x
  2. Step 2: Convert to fraction form
    25,513.04/38,272.48 = 12,355.90/x
  3. Step 3: Cross multiply
    25,513.04x = 38,272.48 × 12,355.90
  4. Step 4: Simplify right side
    25,513.04x = 472,890,935.63
  5. Step 5: Solve for x
    x = 472,890,935.63/25,513.04
  6. Step 6: Final answer
    x = 18,535.26

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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.