Home / 22,488.53-31,035.21-12,418.40

Finding the Fourth Proportional to 22,488.53, 31,035.21 and 12,418.40

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Solution

The fourth proportional to 22,488.53, 31,035.21 and 12,418.40 is: 17,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,488.53 : 31,035.21 = 12,418.40 : x
  2. Step 2: Convert to fraction form
    22,488.53/31,035.21 = 12,418.40/x
  3. Step 3: Cross multiply
    22,488.53x = 31,035.21 × 12,418.40
  4. Step 4: Simplify right side
    22,488.53x = 385,407,651.86
  5. Step 5: Solve for x
    x = 385,407,651.86/22,488.53
  6. Step 6: Final answer
    x = 17,137.97

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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.