Home / 38,653.36-53,449.01-30,681.75

Finding the Fourth Proportional to 38,653.36, 53,449.01 and 30,681.75

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Solution

The fourth proportional to 38,653.36, 53,449.01 and 30,681.75 is: 42,426.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,653.36 : 53,449.01 = 30,681.75 : x
  2. Step 2: Convert to fraction form
    38,653.36/53,449.01 = 30,681.75/x
  3. Step 3: Cross multiply
    38,653.36x = 53,449.01 × 30,681.75
  4. Step 4: Simplify right side
    38,653.36x = 1,639,909,162.57
  5. Step 5: Solve for x
    x = 1,639,909,162.57/38,653.36
  6. Step 6: Final answer
    x = 42,426.04

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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.