Home / 38,772.51-53,505.87-21,776.76

Finding the Fourth Proportional to 38,772.51, 53,505.87 and 21,776.76

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Solution

The fourth proportional to 38,772.51, 53,505.87 and 21,776.76 is: 30,051.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,772.51 : 53,505.87 = 21,776.76 : x
  2. Step 2: Convert to fraction form
    38,772.51/53,505.87 = 21,776.76/x
  3. Step 3: Cross multiply
    38,772.51x = 53,505.87 × 21,776.76
  4. Step 4: Simplify right side
    38,772.51x = 1,165,184,489.58
  5. Step 5: Solve for x
    x = 1,165,184,489.58/38,772.51
  6. Step 6: Final answer
    x = 30,051.82

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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.