Home / 25,658.28-35,424.36-19,678.44

Finding the Fourth Proportional to 25,658.28, 35,424.36 and 19,678.44

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Solution

The fourth proportional to 25,658.28, 35,424.36 and 19,678.44 is: 27,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,658.28 : 35,424.36 = 19,678.44 : x
  2. Step 2: Convert to fraction form
    25,658.28/35,424.36 = 19,678.44/x
  3. Step 3: Cross multiply
    25,658.28x = 35,424.36 × 19,678.44
  4. Step 4: Simplify right side
    25,658.28x = 697,096,142.80
  5. Step 5: Solve for x
    x = 697,096,142.80/25,658.28
  6. Step 6: Final answer
    x = 27,168.47

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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.