Home / 19,784.99-27,306.77-19,128.13

Finding the Fourth Proportional to 19,784.99, 27,306.77 and 19,128.13

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Solution

The fourth proportional to 19,784.99, 27,306.77 and 19,128.13 is: 26,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.99 : 27,306.77 = 19,128.13 : x
  2. Step 2: Convert to fraction form
    19,784.99/27,306.77 = 19,128.13/x
  3. Step 3: Cross multiply
    19,784.99x = 27,306.77 × 19,128.13
  4. Step 4: Simplify right side
    19,784.99x = 522,327,543.73
  5. Step 5: Solve for x
    x = 522,327,543.73/19,784.99
  6. Step 6: Final answer
    x = 26,400.19

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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.