Home / 21,246.81-29,350.44-20,125.77

Finding the Fourth Proportional to 21,246.81, 29,350.44 and 20,125.77

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Solution

The fourth proportional to 21,246.81, 29,350.44 and 20,125.77 is: 27,801.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.81 : 29,350.44 = 20,125.77 : x
  2. Step 2: Convert to fraction form
    21,246.81/29,350.44 = 20,125.77/x
  3. Step 3: Cross multiply
    21,246.81x = 29,350.44 × 20,125.77
  4. Step 4: Simplify right side
    21,246.81x = 590,700,204.84
  5. Step 5: Solve for x
    x = 590,700,204.84/21,246.81
  6. Step 6: Final answer
    x = 27,801.83

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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.