Home / 19,772.61-27,315.83-12,982.74

Finding the Fourth Proportional to 19,772.61, 27,315.83 and 12,982.74

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Solution

The fourth proportional to 19,772.61, 27,315.83 and 12,982.74 is: 17,935.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.61 : 27,315.83 = 12,982.74 : x
  2. Step 2: Convert to fraction form
    19,772.61/27,315.83 = 12,982.74/x
  3. Step 3: Cross multiply
    19,772.61x = 27,315.83 × 12,982.74
  4. Step 4: Simplify right side
    19,772.61x = 354,634,318.77
  5. Step 5: Solve for x
    x = 354,634,318.77/19,772.61
  6. Step 6: Final answer
    x = 17,935.64

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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.