Home / 35,895.40-49,535.22-20,991.40

Finding the Fourth Proportional to 35,895.40, 49,535.22 and 20,991.40

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Solution

The fourth proportional to 35,895.40, 49,535.22 and 20,991.40 is: 28,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,895.40 : 49,535.22 = 20,991.40 : x
  2. Step 2: Convert to fraction form
    35,895.40/49,535.22 = 20,991.40/x
  3. Step 3: Cross multiply
    35,895.40x = 49,535.22 × 20,991.40
  4. Step 4: Simplify right side
    35,895.40x = 1,039,813,617.11
  5. Step 5: Solve for x
    x = 1,039,813,617.11/35,895.40
  6. Step 6: Final answer
    x = 28,967.88

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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.