Home / 48,431.90-72,647.75-13,371.45

Finding the Fourth Proportional to 48,431.90, 72,647.75 and 13,371.45

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Solution

The fourth proportional to 48,431.90, 72,647.75 and 13,371.45 is: 20,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,431.90 : 72,647.75 = 13,371.45 : x
  2. Step 2: Convert to fraction form
    48,431.90/72,647.75 = 13,371.45/x
  3. Step 3: Cross multiply
    48,431.90x = 72,647.75 × 13,371.45
  4. Step 4: Simplify right side
    48,431.90x = 971,405,925.26
  5. Step 5: Solve for x
    x = 971,405,925.26/48,431.90
  6. Step 6: Final answer
    x = 20,057.15

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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.