Home / 39,083.04-58,636.98-12,781.80

Finding the Fourth Proportional to 39,083.04, 58,636.98 and 12,781.80

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Solution

The fourth proportional to 39,083.04, 58,636.98 and 12,781.80 is: 19,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,083.04 : 58,636.98 = 12,781.80 : x
  2. Step 2: Convert to fraction form
    39,083.04/58,636.98 = 12,781.80/x
  3. Step 3: Cross multiply
    39,083.04x = 58,636.98 × 12,781.80
  4. Step 4: Simplify right side
    39,083.04x = 749,486,150.96
  5. Step 5: Solve for x
    x = 749,486,150.96/39,083.04
  6. Step 6: Final answer
    x = 19,176.76

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1.5x scale

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.