Home / 22,265.39-30,725.49-12,705.81

Finding the Fourth Proportional to 22,265.39, 30,725.49 and 12,705.81

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Solution

The fourth proportional to 22,265.39, 30,725.49 and 12,705.81 is: 17,533.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265.39 : 30,725.49 = 12,705.81 : x
  2. Step 2: Convert to fraction form
    22,265.39/30,725.49 = 12,705.81/x
  3. Step 3: Cross multiply
    22,265.39x = 30,725.49 × 12,705.81
  4. Step 4: Simplify right side
    22,265.39x = 390,392,075.23
  5. Step 5: Solve for x
    x = 390,392,075.23/22,265.39
  6. Step 6: Final answer
    x = 17,533.58

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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.