Home / 40,688.16-56,146.44-22,779

Finding the Fourth Proportional to 40,688.16, 56,146.44 and 22,779

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Solution

The fourth proportional to 40,688.16, 56,146.44 and 22,779 is: 31,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.16 : 56,146.44 = 22,779 : x
  2. Step 2: Convert to fraction form
    40,688.16/56,146.44 = 22,779/x
  3. Step 3: Cross multiply
    40,688.16x = 56,146.44 × 22,779
  4. Step 4: Simplify right side
    40,688.16x = 1,278,959,756.76
  5. Step 5: Solve for x
    x = 1,278,959,756.76/40,688.16
  6. Step 6: Final answer
    x = 31,433.22

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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.