Home / 19,935.64-29,903.51-18,717.76

Finding the Fourth Proportional to 19,935.64, 29,903.51 and 18,717.76

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Solution

The fourth proportional to 19,935.64, 29,903.51 and 18,717.76 is: 28,076.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.64 : 29,903.51 = 18,717.76 : x
  2. Step 2: Convert to fraction form
    19,935.64/29,903.51 = 18,717.76/x
  3. Step 3: Cross multiply
    19,935.64x = 29,903.51 × 18,717.76
  4. Step 4: Simplify right side
    19,935.64x = 559,726,723.34
  5. Step 5: Solve for x
    x = 559,726,723.34/19,935.64
  6. Step 6: Final answer
    x = 28,076.69

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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.