Home / 22,117.49-33,172.81-12,127.15

Finding the Fourth Proportional to 22,117.49, 33,172.81 and 12,127.15

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Solution

The fourth proportional to 22,117.49, 33,172.81 and 12,127.15 is: 18,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,117.49 : 33,172.81 = 12,127.15 : x
  2. Step 2: Convert to fraction form
    22,117.49/33,172.81 = 12,127.15/x
  3. Step 3: Cross multiply
    22,117.49x = 33,172.81 × 12,127.15
  4. Step 4: Simplify right side
    22,117.49x = 402,291,653.94
  5. Step 5: Solve for x
    x = 402,291,653.94/22,117.49
  6. Step 6: Final answer
    x = 18,188.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.