Home / 25,637.04-38,431.80-13,129.52

Finding the Fourth Proportional to 25,637.04, 38,431.80 and 13,129.52

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Solution

The fourth proportional to 25,637.04, 38,431.80 and 13,129.52 is: 19,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,637.04 : 38,431.80 = 13,129.52 : x
  2. Step 2: Convert to fraction form
    25,637.04/38,431.80 = 13,129.52/x
  3. Step 3: Cross multiply
    25,637.04x = 38,431.80 × 13,129.52
  4. Step 4: Simplify right side
    25,637.04x = 504,590,894.58
  5. Step 5: Solve for x
    x = 504,590,894.58/25,637.04
  6. Step 6: Final answer
    x = 19,682.10

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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.