Home / 15,890.60-21,884.64-15,546.22

Finding the Fourth Proportional to 15,890.60, 21,884.64 and 15,546.22

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Solution

The fourth proportional to 15,890.60, 21,884.64 and 15,546.22 is: 21,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.60 : 21,884.64 = 15,546.22 : x
  2. Step 2: Convert to fraction form
    15,890.60/21,884.64 = 15,546.22/x
  3. Step 3: Cross multiply
    15,890.60x = 21,884.64 × 15,546.22
  4. Step 4: Simplify right side
    15,890.60x = 340,223,428.06
  5. Step 5: Solve for x
    x = 340,223,428.06/15,890.60
  6. Step 6: Final answer
    x = 21,410.36

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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.