Home / 19,926.39-27,499.27-11,430.91

Finding the Fourth Proportional to 19,926.39, 27,499.27 and 11,430.91

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Solution

The fourth proportional to 19,926.39, 27,499.27 and 11,430.91 is: 15,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,926.39 : 27,499.27 = 11,430.91 : x
  2. Step 2: Convert to fraction form
    19,926.39/27,499.27 = 11,430.91/x
  3. Step 3: Cross multiply
    19,926.39x = 27,499.27 × 11,430.91
  4. Step 4: Simplify right side
    19,926.39x = 314,341,707.67
  5. Step 5: Solve for x
    x = 314,341,707.67/19,926.39
  6. Step 6: Final answer
    x = 15,775.14

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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.