Home / 31,391.22-47,082.64-11,667.10

Finding the Fourth Proportional to 31,391.22, 47,082.64 and 11,667.10

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Solution

The fourth proportional to 31,391.22, 47,082.64 and 11,667.10 is: 17,499.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.22 : 47,082.64 = 11,667.10 : x
  2. Step 2: Convert to fraction form
    31,391.22/47,082.64 = 11,667.10/x
  3. Step 3: Cross multiply
    31,391.22x = 47,082.64 × 11,667.10
  4. Step 4: Simplify right side
    31,391.22x = 549,317,869.14
  5. Step 5: Solve for x
    x = 549,317,869.14/31,391.22
  6. Step 6: Final answer
    x = 17,499.09

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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.