Home / 35,828.41-49,439.27-20,718.78

Finding the Fourth Proportional to 35,828.41, 49,439.27 and 20,718.78

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Solution

The fourth proportional to 35,828.41, 49,439.27 and 20,718.78 is: 28,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,828.41 : 49,439.27 = 20,718.78 : x
  2. Step 2: Convert to fraction form
    35,828.41/49,439.27 = 20,718.78/x
  3. Step 3: Cross multiply
    35,828.41x = 49,439.27 × 20,718.78
  4. Step 4: Simplify right side
    35,828.41x = 1,024,321,358.49
  5. Step 5: Solve for x
    x = 1,024,321,358.49/35,828.41
  6. Step 6: Final answer
    x = 28,589.64

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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.