Home / 19,632.11-27,078.50-12,915.59

Finding the Fourth Proportional to 19,632.11, 27,078.50 and 12,915.59

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Solution

The fourth proportional to 19,632.11, 27,078.50 and 12,915.59 is: 17,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,632.11 : 27,078.50 = 12,915.59 : x
  2. Step 2: Convert to fraction form
    19,632.11/27,078.50 = 12,915.59/x
  3. Step 3: Cross multiply
    19,632.11x = 27,078.50 × 12,915.59
  4. Step 4: Simplify right side
    19,632.11x = 349,734,700.71
  5. Step 5: Solve for x
    x = 349,734,700.71/19,632.11
  6. Step 6: Final answer
    x = 17,814.43

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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.