Home / 38,154.32-52,651.50-21,159.26

Finding the Fourth Proportional to 38,154.32, 52,651.50 and 21,159.26

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Solution

The fourth proportional to 38,154.32, 52,651.50 and 21,159.26 is: 29,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,154.32 : 52,651.50 = 21,159.26 : x
  2. Step 2: Convert to fraction form
    38,154.32/52,651.50 = 21,159.26/x
  3. Step 3: Cross multiply
    38,154.32x = 52,651.50 × 21,159.26
  4. Step 4: Simplify right side
    38,154.32x = 1,114,066,777.89
  5. Step 5: Solve for x
    x = 1,114,066,777.89/38,154.32
  6. Step 6: Final answer
    x = 29,198.97

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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.