Home / 20,662,458.96-28,553,520.04-15,496,852.44

Finding the Fourth Proportional to 20,662,458.96, 28,553,520.04 and 15,496,852.44

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Solution

The fourth proportional to 20,662,458.96, 28,553,520.04 and 15,496,852.44 is: 21,415,151.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662,458.96 : 28,553,520.04 = 15,496,852.44 : x
  2. Step 2: Convert to fraction form
    20,662,458.96/28,553,520.04 = 15,496,852.44/x
  3. Step 3: Cross multiply
    20,662,458.96x = 28,553,520.04 × 15,496,852.44
  4. Step 4: Simplify right side
    20,662,458.96x = 442,489,686,702,462.88
  5. Step 5: Solve for x
    x = 442,489,686,702,462.88/20,662,458.96
  6. Step 6: Final answer
    x = 21,415,151.39

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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.