Home / 28,011.64-38,655.96-15,265.54

Finding the Fourth Proportional to 28,011.64, 38,655.96 and 15,265.54

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Solution

The fourth proportional to 28,011.64, 38,655.96 and 15,265.54 is: 21,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.64 : 38,655.96 = 15,265.54 : x
  2. Step 2: Convert to fraction form
    28,011.64/38,655.96 = 15,265.54/x
  3. Step 3: Cross multiply
    28,011.64x = 38,655.96 × 15,265.54
  4. Step 4: Simplify right side
    28,011.64x = 590,104,103.62
  5. Step 5: Solve for x
    x = 590,104,103.62/28,011.64
  6. Step 6: Final answer
    x = 21,066.39

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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.