Home / 22,621.62-31,218.02-12,550.72

Finding the Fourth Proportional to 22,621.62, 31,218.02 and 12,550.72

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Solution

The fourth proportional to 22,621.62, 31,218.02 and 12,550.72 is: 17,320.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.62 : 31,218.02 = 12,550.72 : x
  2. Step 2: Convert to fraction form
    22,621.62/31,218.02 = 12,550.72/x
  3. Step 3: Cross multiply
    22,621.62x = 31,218.02 × 12,550.72
  4. Step 4: Simplify right side
    22,621.62x = 391,808,534.24
  5. Step 5: Solve for x
    x = 391,808,534.24/22,621.62
  6. Step 6: Final answer
    x = 17,320.09

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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.