Home / 38,808.45-53,555.51-21,813.17

Finding the Fourth Proportional to 38,808.45, 53,555.51 and 21,813.17

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Solution

The fourth proportional to 38,808.45, 53,555.51 and 21,813.17 is: 30,102.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,808.45 : 53,555.51 = 21,813.17 : x
  2. Step 2: Convert to fraction form
    38,808.45/53,555.51 = 21,813.17/x
  3. Step 3: Cross multiply
    38,808.45x = 53,555.51 × 21,813.17
  4. Step 4: Simplify right side
    38,808.45x = 1,168,215,230.82
  5. Step 5: Solve for x
    x = 1,168,215,230.82/38,808.45
  6. Step 6: Final answer
    x = 30,102.08

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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.