Home / 21,580.71-29,785.97-14,503.03

Finding the Fourth Proportional to 21,580.71, 29,785.97 and 14,503.03

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Solution

The fourth proportional to 21,580.71, 29,785.97 and 14,503.03 is: 20,017.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580.71 : 29,785.97 = 14,503.03 : x
  2. Step 2: Convert to fraction form
    21,580.71/29,785.97 = 14,503.03/x
  3. Step 3: Cross multiply
    21,580.71x = 29,785.97 × 14,503.03
  4. Step 4: Simplify right side
    21,580.71x = 431,986,696.70
  5. Step 5: Solve for x
    x = 431,986,696.70/21,580.71
  6. Step 6: Final answer
    x = 20,017.26

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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.