Home / 31,781.16-47,671.74-12,055.03

Finding the Fourth Proportional to 31,781.16, 47,671.74 and 12,055.03

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Solution

The fourth proportional to 31,781.16, 47,671.74 and 12,055.03 is: 18,082.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.16 : 47,671.74 = 12,055.03 : x
  2. Step 2: Convert to fraction form
    31,781.16/47,671.74 = 12,055.03/x
  3. Step 3: Cross multiply
    31,781.16x = 47,671.74 × 12,055.03
  4. Step 4: Simplify right side
    31,781.16x = 574,684,136.67
  5. Step 5: Solve for x
    x = 574,684,136.67/31,781.16
  6. Step 6: Final answer
    x = 18,082.54

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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.