Home / 28,045.31-38,706.80-17,438.36

Finding the Fourth Proportional to 28,045.31, 38,706.80 and 17,438.36

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Solution

The fourth proportional to 28,045.31, 38,706.80 and 17,438.36 is: 24,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.31 : 38,706.80 = 17,438.36 : x
  2. Step 2: Convert to fraction form
    28,045.31/38,706.80 = 17,438.36/x
  3. Step 3: Cross multiply
    28,045.31x = 38,706.80 × 17,438.36
  4. Step 4: Simplify right side
    28,045.31x = 674,982,832.12
  5. Step 5: Solve for x
    x = 674,982,832.12/28,045.31
  6. Step 6: Final answer
    x = 24,067.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.