Home / 20,577.08-28,395.69-11,502.19

Finding the Fourth Proportional to 20,577.08, 28,395.69 and 11,502.19

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Solution

The fourth proportional to 20,577.08, 28,395.69 and 11,502.19 is: 15,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.08 : 28,395.69 = 11,502.19 : x
  2. Step 2: Convert to fraction form
    20,577.08/28,395.69 = 11,502.19/x
  3. Step 3: Cross multiply
    20,577.08x = 28,395.69 × 11,502.19
  4. Step 4: Simplify right side
    20,577.08x = 326,612,621.56
  5. Step 5: Solve for x
    x = 326,612,621.56/20,577.08
  6. Step 6: Final answer
    x = 15,872.64

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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.