Home / 34,118.57-47,083.73-19,781.21

Finding the Fourth Proportional to 34,118.57, 47,083.73 and 19,781.21

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Solution

The fourth proportional to 34,118.57, 47,083.73 and 19,781.21 is: 27,298.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,118.57 : 47,083.73 = 19,781.21 : x
  2. Step 2: Convert to fraction form
    34,118.57/47,083.73 = 19,781.21/x
  3. Step 3: Cross multiply
    34,118.57x = 47,083.73 × 19,781.21
  4. Step 4: Simplify right side
    34,118.57x = 931,373,280.79
  5. Step 5: Solve for x
    x = 931,373,280.79/34,118.57
  6. Step 6: Final answer
    x = 27,298.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.