Home / 39,127.40-53,994.83-21,899.51

Finding the Fourth Proportional to 39,127.40, 53,994.83 and 21,899.51

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Solution

The fourth proportional to 39,127.40, 53,994.83 and 21,899.51 is: 30,220.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,127.40 : 53,994.83 = 21,899.51 : x
  2. Step 2: Convert to fraction form
    39,127.40/53,994.83 = 21,899.51/x
  3. Step 3: Cross multiply
    39,127.40x = 53,994.83 × 21,899.51
  4. Step 4: Simplify right side
    39,127.40x = 1,182,459,940.06
  5. Step 5: Solve for x
    x = 1,182,459,940.06/39,127.40
  6. Step 6: Final answer
    x = 30,220.77

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Double scale
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Similar ratio
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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.