Home / 20,668.08-28,526.48-13,595.20

Finding the Fourth Proportional to 20,668.08, 28,526.48 and 13,595.20

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Solution

The fourth proportional to 20,668.08, 28,526.48 and 13,595.20 is: 18,764.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.08 : 28,526.48 = 13,595.20 : x
  2. Step 2: Convert to fraction form
    20,668.08/28,526.48 = 13,595.20/x
  3. Step 3: Cross multiply
    20,668.08x = 28,526.48 × 13,595.20
  4. Step 4: Simplify right side
    20,668.08x = 387,823,200.90
  5. Step 5: Solve for x
    x = 387,823,200.90/20,668.08
  6. Step 6: Final answer
    x = 18,764.36

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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.