Home / 20,347.61-28,067.28-13,448.77

Finding the Fourth Proportional to 20,347.61, 28,067.28 and 13,448.77

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Solution

The fourth proportional to 20,347.61, 28,067.28 and 13,448.77 is: 18,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.61 : 28,067.28 = 13,448.77 : x
  2. Step 2: Convert to fraction form
    20,347.61/28,067.28 = 13,448.77/x
  3. Step 3: Cross multiply
    20,347.61x = 28,067.28 × 13,448.77
  4. Step 4: Simplify right side
    20,347.61x = 377,470,323.08
  5. Step 5: Solve for x
    x = 377,470,323.08/20,347.61
  6. Step 6: Final answer
    x = 18,551.09

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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.