Home / 31,393.53-47,082.99-11,681.37

Finding the Fourth Proportional to 31,393.53, 47,082.99 and 11,681.37

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Solution

The fourth proportional to 31,393.53, 47,082.99 and 11,681.37 is: 17,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,393.53 : 47,082.99 = 11,681.37 : x
  2. Step 2: Convert to fraction form
    31,393.53/47,082.99 = 11,681.37/x
  3. Step 3: Cross multiply
    31,393.53x = 47,082.99 × 11,681.37
  4. Step 4: Simplify right side
    31,393.53x = 549,993,826.90
  5. Step 5: Solve for x
    x = 549,993,826.90/31,393.53
  6. Step 6: Final answer
    x = 17,519.34

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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.