Home / 32,911.71-45,399.69-20,171.06

Finding the Fourth Proportional to 32,911.71, 45,399.69 and 20,171.06

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Solution

The fourth proportional to 32,911.71, 45,399.69 and 20,171.06 is: 27,824.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,911.71 : 45,399.69 = 20,171.06 : x
  2. Step 2: Convert to fraction form
    32,911.71/45,399.69 = 20,171.06/x
  3. Step 3: Cross multiply
    32,911.71x = 45,399.69 × 20,171.06
  4. Step 4: Simplify right side
    32,911.71x = 915,759,870.97
  5. Step 5: Solve for x
    x = 915,759,870.97/32,911.71
  6. Step 6: Final answer
    x = 27,824.74

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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.