Home / 26,116.80-39,175.20-11,315.40

Finding the Fourth Proportional to 26,116.80, 39,175.20 and 11,315.40

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Solution

The fourth proportional to 26,116.80, 39,175.20 and 11,315.40 is: 16,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,116.80 : 39,175.20 = 11,315.40 : x
  2. Step 2: Convert to fraction form
    26,116.80/39,175.20 = 11,315.40/x
  3. Step 3: Cross multiply
    26,116.80x = 39,175.20 × 11,315.40
  4. Step 4: Simplify right side
    26,116.80x = 443,283,058.08
  5. Step 5: Solve for x
    x = 443,283,058.08/26,116.80
  6. Step 6: Final answer
    x = 16,973.10

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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.