Home / 26,709.12-40,058.82-11,915.28

Finding the Fourth Proportional to 26,709.12, 40,058.82 and 11,915.28

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Solution

The fourth proportional to 26,709.12, 40,058.82 and 11,915.28 is: 17,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,709.12 : 40,058.82 = 11,915.28 : x
  2. Step 2: Convert to fraction form
    26,709.12/40,058.82 = 11,915.28/x
  3. Step 3: Cross multiply
    26,709.12x = 40,058.82 × 11,915.28
  4. Step 4: Simplify right side
    26,709.12x = 477,312,056.77
  5. Step 5: Solve for x
    x = 477,312,056.77/26,709.12
  6. Step 6: Final answer
    x = 17,870.75

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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.