Home / 22,210.84-30,651.45-12,139.93

Finding the Fourth Proportional to 22,210.84, 30,651.45 and 12,139.93

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Solution

The fourth proportional to 22,210.84, 30,651.45 and 12,139.93 is: 16,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.84 : 30,651.45 = 12,139.93 : x
  2. Step 2: Convert to fraction form
    22,210.84/30,651.45 = 12,139.93/x
  3. Step 3: Cross multiply
    22,210.84x = 30,651.45 × 12,139.93
  4. Step 4: Simplify right side
    22,210.84x = 372,106,450.19
  5. Step 5: Solve for x
    x = 372,106,450.19/22,210.84
  6. Step 6: Final answer
    x = 16,753.37

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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.