Home / 20,714.60-28,400.29-20,341.33

Finding the Fourth Proportional to 20,714.60, 28,400.29 and 20,341.33

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Solution

The fourth proportional to 20,714.60, 28,400.29 and 20,341.33 is: 27,888.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.60 : 28,400.29 = 20,341.33 : x
  2. Step 2: Convert to fraction form
    20,714.60/28,400.29 = 20,341.33/x
  3. Step 3: Cross multiply
    20,714.60x = 28,400.29 × 20,341.33
  4. Step 4: Simplify right side
    20,714.60x = 577,699,549.13
  5. Step 5: Solve for x
    x = 577,699,549.13/20,714.60
  6. Step 6: Final answer
    x = 27,888.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.