Home / 28,487.72-39,290.64-26,577.88

Finding the Fourth Proportional to 28,487.72, 39,290.64 and 26,577.88

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Solution

The fourth proportional to 28,487.72, 39,290.64 and 26,577.88 is: 36,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487.72 : 39,290.64 = 26,577.88 : x
  2. Step 2: Convert to fraction form
    28,487.72/39,290.64 = 26,577.88/x
  3. Step 3: Cross multiply
    28,487.72x = 39,290.64 × 26,577.88
  4. Step 4: Simplify right side
    28,487.72x = 1,044,261,915.04
  5. Step 5: Solve for x
    x = 1,044,261,915.04/28,487.72
  6. Step 6: Final answer
    x = 36,656.56

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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.