Home / 35,772.76-49,372.70-20,665.99

Finding the Fourth Proportional to 35,772.76, 49,372.70 and 20,665.99

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Solution

The fourth proportional to 35,772.76, 49,372.70 and 20,665.99 is: 28,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,772.76 : 49,372.70 = 20,665.99 : x
  2. Step 2: Convert to fraction form
    35,772.76/49,372.70 = 20,665.99/x
  3. Step 3: Cross multiply
    35,772.76x = 49,372.70 × 20,665.99
  4. Step 4: Simplify right side
    35,772.76x = 1,020,335,724.47
  5. Step 5: Solve for x
    x = 1,020,335,724.47/35,772.76
  6. Step 6: Final answer
    x = 28,522.70

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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.