Home / 25,721.40-35,493.66-14,390.28

Finding the Fourth Proportional to 25,721.40, 35,493.66 and 14,390.28

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Solution

The fourth proportional to 25,721.40, 35,493.66 and 14,390.28 is: 19,857.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.40 : 35,493.66 = 14,390.28 : x
  2. Step 2: Convert to fraction form
    25,721.40/35,493.66 = 14,390.28/x
  3. Step 3: Cross multiply
    25,721.40x = 35,493.66 × 14,390.28
  4. Step 4: Simplify right side
    25,721.40x = 510,763,705.62
  5. Step 5: Solve for x
    x = 510,763,705.62/25,721.40
  6. Step 6: Final answer
    x = 19,857.54

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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.