Home / 15,431.04-23,123.88-13,196.66

Finding the Fourth Proportional to 15,431.04, 23,123.88 and 13,196.66

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Solution

The fourth proportional to 15,431.04, 23,123.88 and 13,196.66 is: 19,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.04 : 23,123.88 = 13,196.66 : x
  2. Step 2: Convert to fraction form
    15,431.04/23,123.88 = 13,196.66/x
  3. Step 3: Cross multiply
    15,431.04x = 23,123.88 × 13,196.66
  4. Step 4: Simplify right side
    15,431.04x = 305,157,866.62
  5. Step 5: Solve for x
    x = 305,157,866.62/15,431.04
  6. Step 6: Final answer
    x = 19,775.59

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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.