Home / 35,743.92-49,328.94-20,639.40

Finding the Fourth Proportional to 35,743.92, 49,328.94 and 20,639.40

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Solution

The fourth proportional to 35,743.92, 49,328.94 and 20,639.40 is: 28,483.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,743.92 : 49,328.94 = 20,639.40 : x
  2. Step 2: Convert to fraction form
    35,743.92/49,328.94 = 20,639.40/x
  3. Step 3: Cross multiply
    35,743.92x = 49,328.94 × 20,639.40
  4. Step 4: Simplify right side
    35,743.92x = 1,018,119,724.24
  5. Step 5: Solve for x
    x = 1,018,119,724.24/35,743.92
  6. Step 6: Final answer
    x = 28,483.72

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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.