Home / 19,937.84-27,491.55-12,758.18

Finding the Fourth Proportional to 19,937.84, 27,491.55 and 12,758.18

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Solution

The fourth proportional to 19,937.84, 27,491.55 and 12,758.18 is: 17,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.84 : 27,491.55 = 12,758.18 : x
  2. Step 2: Convert to fraction form
    19,937.84/27,491.55 = 12,758.18/x
  3. Step 3: Cross multiply
    19,937.84x = 27,491.55 × 12,758.18
  4. Step 4: Simplify right side
    19,937.84x = 350,742,143.38
  5. Step 5: Solve for x
    x = 350,742,143.38/19,937.84
  6. Step 6: Final answer
    x = 17,591.78

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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.