Home / 35,387.83-48,836.53-20,283.40

Finding the Fourth Proportional to 35,387.83, 48,836.53 and 20,283.40

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Solution

The fourth proportional to 35,387.83, 48,836.53 and 20,283.40 is: 27,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,387.83 : 48,836.53 = 20,283.40 : x
  2. Step 2: Convert to fraction form
    35,387.83/48,836.53 = 20,283.40/x
  3. Step 3: Cross multiply
    35,387.83x = 48,836.53 × 20,283.40
  4. Step 4: Simplify right side
    35,387.83x = 990,570,872.60
  5. Step 5: Solve for x
    x = 990,570,872.60/35,387.83
  6. Step 6: Final answer
    x = 27,991.85

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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.