Home / 39,172.82-58,746.77-12,871.49

Finding the Fourth Proportional to 39,172.82, 58,746.77 and 12,871.49

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Solution

The fourth proportional to 39,172.82, 58,746.77 and 12,871.49 is: 19,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172.82 : 58,746.77 = 12,871.49 : x
  2. Step 2: Convert to fraction form
    39,172.82/58,746.77 = 12,871.49/x
  3. Step 3: Cross multiply
    39,172.82x = 58,746.77 × 12,871.49
  4. Step 4: Simplify right side
    39,172.82x = 756,158,398.23
  5. Step 5: Solve for x
    x = 756,158,398.23/39,172.82
  6. Step 6: Final answer
    x = 19,303.14

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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.