Home / 22,981.88-31,719.18-13,550.84

Finding the Fourth Proportional to 22,981.88, 31,719.18 and 13,550.84

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Solution

The fourth proportional to 22,981.88, 31,719.18 and 13,550.84 is: 18,702.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,981.88 : 31,719.18 = 13,550.84 : x
  2. Step 2: Convert to fraction form
    22,981.88/31,719.18 = 13,550.84/x
  3. Step 3: Cross multiply
    22,981.88x = 31,719.18 × 13,550.84
  4. Step 4: Simplify right side
    22,981.88x = 429,821,533.11
  5. Step 5: Solve for x
    x = 429,821,533.11/22,981.88
  6. Step 6: Final answer
    x = 18,702.63

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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.