Home / 35,905.72-49,551.86-19,989.84

Finding the Fourth Proportional to 35,905.72, 49,551.86 and 19,989.84

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Solution

The fourth proportional to 35,905.72, 49,551.86 and 19,989.84 is: 27,587.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,905.72 : 49,551.86 = 19,989.84 : x
  2. Step 2: Convert to fraction form
    35,905.72/49,551.86 = 19,989.84/x
  3. Step 3: Cross multiply
    35,905.72x = 49,551.86 × 19,989.84
  4. Step 4: Simplify right side
    35,905.72x = 990,533,753.10
  5. Step 5: Solve for x
    x = 990,533,753.10/35,905.72
  6. Step 6: Final answer
    x = 27,587.07

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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.