Home / 39,912-59,868.30-17,719.42

Finding the Fourth Proportional to 39,912, 59,868.30 and 17,719.42

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Solution

The fourth proportional to 39,912, 59,868.30 and 17,719.42 is: 26,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912 : 59,868.30 = 17,719.42 : x
  2. Step 2: Convert to fraction form
    39,912/59,868.30 = 17,719.42/x
  3. Step 3: Cross multiply
    39,912x = 59,868.30 × 17,719.42
  4. Step 4: Simplify right side
    39,912x = 1,060,831,552.39
  5. Step 5: Solve for x
    x = 1,060,831,552.39/39,912
  6. Step 6: Final answer
    x = 26,579.26

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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.