Home / 20,579.64-28,358.76-14,281.08

Finding the Fourth Proportional to 20,579.64, 28,358.76 and 14,281.08

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Solution

The fourth proportional to 20,579.64, 28,358.76 and 14,281.08 is: 19,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.64 : 28,358.76 = 14,281.08 : x
  2. Step 2: Convert to fraction form
    20,579.64/28,358.76 = 14,281.08/x
  3. Step 3: Cross multiply
    20,579.64x = 28,358.76 × 14,281.08
  4. Step 4: Simplify right side
    20,579.64x = 404,993,720.26
  5. Step 5: Solve for x
    x = 404,993,720.26/20,579.64
  6. Step 6: Final answer
    x = 19,679.34

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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.