Home / 35,629.12-53,458.80-13,439.20

Finding the Fourth Proportional to 35,629.12, 53,458.80 and 13,439.20

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Solution

The fourth proportional to 35,629.12, 53,458.80 and 13,439.20 is: 20,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,629.12 : 53,458.80 = 13,439.20 : x
  2. Step 2: Convert to fraction form
    35,629.12/53,458.80 = 13,439.20/x
  3. Step 3: Cross multiply
    35,629.12x = 53,458.80 × 13,439.20
  4. Step 4: Simplify right side
    35,629.12x = 718,443,504.96
  5. Step 5: Solve for x
    x = 718,443,504.96/35,629.12
  6. Step 6: Final answer
    x = 20,164.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.