Home / 19,937.59-29,906.43-18,719.71

Finding the Fourth Proportional to 19,937.59, 29,906.43 and 18,719.71

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Solution

The fourth proportional to 19,937.59, 29,906.43 and 18,719.71 is: 28,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.59 : 29,906.43 = 18,719.71 : x
  2. Step 2: Convert to fraction form
    19,937.59/29,906.43 = 18,719.71/x
  3. Step 3: Cross multiply
    19,937.59x = 29,906.43 × 18,719.71
  4. Step 4: Simplify right side
    19,937.59x = 559,839,551.77
  5. Step 5: Solve for x
    x = 559,839,551.77/19,937.59
  6. Step 6: Final answer
    x = 28,079.60

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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.