Home / 26,538.98-36,637.89-20,557.22

Finding the Fourth Proportional to 26,538.98, 36,637.89 and 20,557.22

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Solution

The fourth proportional to 26,538.98, 36,637.89 and 20,557.22 is: 28,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,538.98 : 36,637.89 = 20,557.22 : x
  2. Step 2: Convert to fraction form
    26,538.98/36,637.89 = 20,557.22/x
  3. Step 3: Cross multiply
    26,538.98x = 36,637.89 × 20,557.22
  4. Step 4: Simplify right side
    26,538.98x = 753,173,165.07
  5. Step 5: Solve for x
    x = 753,173,165.07/26,538.98
  6. Step 6: Final answer
    x = 28,379.88

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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.