Home / 35,741.28-49,325.16-20,636.70

Finding the Fourth Proportional to 35,741.28, 49,325.16 and 20,636.70

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Solution

The fourth proportional to 35,741.28, 49,325.16 and 20,636.70 is: 28,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,741.28 : 49,325.16 = 20,636.70 : x
  2. Step 2: Convert to fraction form
    35,741.28/49,325.16 = 20,636.70/x
  3. Step 3: Cross multiply
    35,741.28x = 49,325.16 × 20,636.70
  4. Step 4: Simplify right side
    35,741.28x = 1,017,908,529.37
  5. Step 5: Solve for x
    x = 1,017,908,529.37/35,741.28
  6. Step 6: Final answer
    x = 28,479.91

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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.