Home / 40,878.78-56,412.90-22,979.94

Finding the Fourth Proportional to 40,878.78, 56,412.90 and 22,979.94

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Solution

The fourth proportional to 40,878.78, 56,412.90 and 22,979.94 is: 31,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,878.78 : 56,412.90 = 22,979.94 : x
  2. Step 2: Convert to fraction form
    40,878.78/56,412.90 = 22,979.94/x
  3. Step 3: Cross multiply
    40,878.78x = 56,412.90 × 22,979.94
  4. Step 4: Simplify right side
    40,878.78x = 1,296,365,057.23
  5. Step 5: Solve for x
    x = 1,296,365,057.23/40,878.78
  6. Step 6: Final answer
    x = 31,712.42

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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.