Home / 20,579.27-28,399.95-11,626.59

Finding the Fourth Proportional to 20,579.27, 28,399.95 and 11,626.59

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Solution

The fourth proportional to 20,579.27, 28,399.95 and 11,626.59 is: 16,045.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.27 : 28,399.95 = 11,626.59 : x
  2. Step 2: Convert to fraction form
    20,579.27/28,399.95 = 11,626.59/x
  3. Step 3: Cross multiply
    20,579.27x = 28,399.95 × 11,626.59
  4. Step 4: Simplify right side
    20,579.27x = 330,194,574.67
  5. Step 5: Solve for x
    x = 330,194,574.67/20,579.27
  6. Step 6: Final answer
    x = 16,045.01

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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.