Home / 31,538.99-47,316.08-11,817.71

Finding the Fourth Proportional to 31,538.99, 47,316.08 and 11,817.71

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Solution

The fourth proportional to 31,538.99, 47,316.08 and 11,817.71 is: 17,729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,538.99 : 47,316.08 = 11,817.71 : x
  2. Step 2: Convert to fraction form
    31,538.99/47,316.08 = 11,817.71/x
  3. Step 3: Cross multiply
    31,538.99x = 47,316.08 × 11,817.71
  4. Step 4: Simplify right side
    31,538.99x = 559,167,948.33
  5. Step 5: Solve for x
    x = 559,167,948.33/31,538.99
  6. Step 6: Final answer
    x = 17,729.42

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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.