Home / 28,483.20-39,260.16-20,514.24

Finding the Fourth Proportional to 28,483.20, 39,260.16 and 20,514.24

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Solution

The fourth proportional to 28,483.20, 39,260.16 and 20,514.24 is: 28,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.20 : 39,260.16 = 20,514.24 : x
  2. Step 2: Convert to fraction form
    28,483.20/39,260.16 = 20,514.24/x
  3. Step 3: Cross multiply
    28,483.20x = 39,260.16 × 20,514.24
  4. Step 4: Simplify right side
    28,483.20x = 805,392,344.68
  5. Step 5: Solve for x
    x = 805,392,344.68/28,483.20
  6. Step 6: Final answer
    x = 28,276.05

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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.