Home / 26,215.21-39,289.98-20,646.56

Finding the Fourth Proportional to 26,215.21, 39,289.98 and 20,646.56

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Solution

The fourth proportional to 26,215.21, 39,289.98 and 20,646.56 is: 30,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,215.21 : 39,289.98 = 20,646.56 : x
  2. Step 2: Convert to fraction form
    26,215.21/39,289.98 = 20,646.56/x
  3. Step 3: Cross multiply
    26,215.21x = 39,289.98 × 20,646.56
  4. Step 4: Simplify right side
    26,215.21x = 811,202,988.98
  5. Step 5: Solve for x
    x = 811,202,988.98/26,215.21
  6. Step 6: Final answer
    x = 30,943.98

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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.