Home / 40,821.78-56,329.71-22,918.74

Finding the Fourth Proportional to 40,821.78, 56,329.71 and 22,918.74

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Solution

The fourth proportional to 40,821.78, 56,329.71 and 22,918.74 is: 31,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,821.78 : 56,329.71 = 22,918.74 : x
  2. Step 2: Convert to fraction form
    40,821.78/56,329.71 = 22,918.74/x
  3. Step 3: Cross multiply
    40,821.78x = 56,329.71 × 22,918.74
  4. Step 4: Simplify right side
    40,821.78x = 1,291,005,977.77
  5. Step 5: Solve for x
    x = 1,291,005,977.77/40,821.78
  6. Step 6: Final answer
    x = 31,625.42

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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.