Home / 20,646.43-28,496.60-13,573.51

Finding the Fourth Proportional to 20,646.43, 28,496.60 and 13,573.51

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Solution

The fourth proportional to 20,646.43, 28,496.60 and 13,573.51 is: 18,734.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.43 : 28,496.60 = 13,573.51 : x
  2. Step 2: Convert to fraction form
    20,646.43/28,496.60 = 13,573.51/x
  3. Step 3: Cross multiply
    20,646.43x = 28,496.60 × 13,573.51
  4. Step 4: Simplify right side
    20,646.43x = 386,798,885.07
  5. Step 5: Solve for x
    x = 386,798,885.07/20,646.43
  6. Step 6: Final answer
    x = 18,734.42

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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.