Home / 26,988.09-40,503.20-18,726.30

Finding the Fourth Proportional to 26,988.09, 40,503.20 and 18,726.30

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Solution

The fourth proportional to 26,988.09, 40,503.20 and 18,726.30 is: 28,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,988.09 : 40,503.20 = 18,726.30 : x
  2. Step 2: Convert to fraction form
    26,988.09/40,503.20 = 18,726.30/x
  3. Step 3: Cross multiply
    26,988.09x = 40,503.20 × 18,726.30
  4. Step 4: Simplify right side
    26,988.09x = 758,474,980.53
  5. Step 5: Solve for x
    x = 758,474,980.53/26,988.09
  6. Step 6: Final answer
    x = 28,104.06

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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.