Home / 19,403.13-26,781.59-18,227.01

Finding the Fourth Proportional to 19,403.13, 26,781.59 and 18,227.01

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Solution

The fourth proportional to 19,403.13, 26,781.59 and 18,227.01 is: 25,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.13 : 26,781.59 = 18,227.01 : x
  2. Step 2: Convert to fraction form
    19,403.13/26,781.59 = 18,227.01/x
  3. Step 3: Cross multiply
    19,403.13x = 26,781.59 × 18,227.01
  4. Step 4: Simplify right side
    19,403.13x = 488,148,217.61
  5. Step 5: Solve for x
    x = 488,148,217.61/19,403.13
  6. Step 6: Final answer
    x = 25,158.22

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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.