Home / 25,474.40-35,153.90-13,989.29

Finding the Fourth Proportional to 25,474.40, 35,153.90 and 13,989.29

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Solution

The fourth proportional to 25,474.40, 35,153.90 and 13,989.29 is: 19,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,474.40 : 35,153.90 = 13,989.29 : x
  2. Step 2: Convert to fraction form
    25,474.40/35,153.90 = 13,989.29/x
  3. Step 3: Cross multiply
    25,474.40x = 35,153.90 × 13,989.29
  4. Step 4: Simplify right side
    25,474.40x = 491,778,048.82
  5. Step 5: Solve for x
    x = 491,778,048.82/25,474.40
  6. Step 6: Final answer
    x = 19,304.80

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1.5x scale

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.