Home / 38,451.80-53,051.06-21,453.29

Finding the Fourth Proportional to 38,451.80, 53,051.06 and 21,453.29

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Solution

The fourth proportional to 38,451.80, 53,051.06 and 21,453.29 is: 29,598.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,451.80 : 53,051.06 = 21,453.29 : x
  2. Step 2: Convert to fraction form
    38,451.80/53,051.06 = 21,453.29/x
  3. Step 3: Cross multiply
    38,451.80x = 53,051.06 × 21,453.29
  4. Step 4: Simplify right side
    38,451.80x = 1,138,119,774.99
  5. Step 5: Solve for x
    x = 1,138,119,774.99/38,451.80
  6. Step 6: Final answer
    x = 29,598.61

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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.