Home / 40,780.10-56,278.77-22,880.78

Finding the Fourth Proportional to 40,780.10, 56,278.77 and 22,880.78

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Solution

The fourth proportional to 40,780.10, 56,278.77 and 22,880.78 is: 31,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,780.10 : 56,278.77 = 22,880.78 : x
  2. Step 2: Convert to fraction form
    40,780.10/56,278.77 = 22,880.78/x
  3. Step 3: Cross multiply
    40,780.10x = 56,278.77 × 22,880.78
  4. Step 4: Simplify right side
    40,780.10x = 1,287,702,155.04
  5. Step 5: Solve for x
    x = 1,287,702,155.04/40,780.10
  6. Step 6: Final answer
    x = 31,576.73

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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.