Home / 22,622.23-31,218.75-12,550.87

Finding the Fourth Proportional to 22,622.23, 31,218.75 and 12,550.87

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Solution

The fourth proportional to 22,622.23, 31,218.75 and 12,550.87 is: 17,320.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.23 : 31,218.75 = 12,550.87 : x
  2. Step 2: Convert to fraction form
    22,622.23/31,218.75 = 12,550.87/x
  3. Step 3: Cross multiply
    22,622.23x = 31,218.75 × 12,550.87
  4. Step 4: Simplify right side
    22,622.23x = 391,822,472.81
  5. Step 5: Solve for x
    x = 391,822,472.81/22,622.23
  6. Step 6: Final answer
    x = 17,320.24

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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.