Home / 26,870.34-37,112.13-20,185.14

Finding the Fourth Proportional to 26,870.34, 37,112.13 and 20,185.14

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Solution

The fourth proportional to 26,870.34, 37,112.13 and 20,185.14 is: 27,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,870.34 : 37,112.13 = 20,185.14 : x
  2. Step 2: Convert to fraction form
    26,870.34/37,112.13 = 20,185.14/x
  3. Step 3: Cross multiply
    26,870.34x = 37,112.13 × 20,185.14
  4. Step 4: Simplify right side
    26,870.34x = 749,113,539.75
  5. Step 5: Solve for x
    x = 749,113,539.75/26,870.34
  6. Step 6: Final answer
    x = 27,878.83

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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.