Home / 20,925.13-28,869.64-11,849.25

Finding the Fourth Proportional to 20,925.13, 28,869.64 and 11,849.25

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Solution

The fourth proportional to 20,925.13, 28,869.64 and 11,849.25 is: 16,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925.13 : 28,869.64 = 11,849.25 : x
  2. Step 2: Convert to fraction form
    20,925.13/28,869.64 = 11,849.25/x
  3. Step 3: Cross multiply
    20,925.13x = 28,869.64 × 11,849.25
  4. Step 4: Simplify right side
    20,925.13x = 342,083,581.77
  5. Step 5: Solve for x
    x = 342,083,581.77/20,925.13
  6. Step 6: Final answer
    x = 16,347.98

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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.