Home / 35,248.12-48,639.22-20,140.72

Finding the Fourth Proportional to 35,248.12, 48,639.22 and 20,140.72

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Solution

The fourth proportional to 35,248.12, 48,639.22 and 20,140.72 is: 27,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,248.12 : 48,639.22 = 20,140.72 : x
  2. Step 2: Convert to fraction form
    35,248.12/48,639.22 = 20,140.72/x
  3. Step 3: Cross multiply
    35,248.12x = 48,639.22 × 20,140.72
  4. Step 4: Simplify right side
    35,248.12x = 979,628,739.09
  5. Step 5: Solve for x
    x = 979,628,739.09/35,248.12
  6. Step 6: Final answer
    x = 27,792.37

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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.