Home / 39,016.84-53,842.84-21,111.45

Finding the Fourth Proportional to 39,016.84, 53,842.84 and 21,111.45

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Solution

The fourth proportional to 39,016.84, 53,842.84 and 21,111.45 is: 29,133.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,016.84 : 53,842.84 = 21,111.45 : x
  2. Step 2: Convert to fraction form
    39,016.84/53,842.84 = 21,111.45/x
  3. Step 3: Cross multiply
    39,016.84x = 53,842.84 × 21,111.45
  4. Step 4: Simplify right side
    39,016.84x = 1,136,700,318.96
  5. Step 5: Solve for x
    x = 1,136,700,318.96/39,016.84
  6. Step 6: Final answer
    x = 29,133.58

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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.