Home / 39,417.30-59,126.40-13,122

Finding the Fourth Proportional to 39,417.30, 59,126.40 and 13,122

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Solution

The fourth proportional to 39,417.30, 59,126.40 and 13,122 is: 19,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,417.30 : 59,126.40 = 13,122 : x
  2. Step 2: Convert to fraction form
    39,417.30/59,126.40 = 13,122/x
  3. Step 3: Cross multiply
    39,417.30x = 59,126.40 × 13,122
  4. Step 4: Simplify right side
    39,417.30x = 775,856,620.80
  5. Step 5: Solve for x
    x = 775,856,620.80/39,417.30
  6. Step 6: Final answer
    x = 19,683.15

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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.