Home / 28,090.02-38,764.20-15,514.74

Finding the Fourth Proportional to 28,090.02, 38,764.20 and 15,514.74

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Solution

The fourth proportional to 28,090.02, 38,764.20 and 15,514.74 is: 21,410.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.02 : 38,764.20 = 15,514.74 : x
  2. Step 2: Convert to fraction form
    28,090.02/38,764.20 = 15,514.74/x
  3. Step 3: Cross multiply
    28,090.02x = 38,764.20 × 15,514.74
  4. Step 4: Simplify right side
    28,090.02x = 601,416,484.31
  5. Step 5: Solve for x
    x = 601,416,484.31/28,090.02
  6. Step 6: Final answer
    x = 21,410.33

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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.