Home / 39,111.67-53,973.80-21,206.62

Finding the Fourth Proportional to 39,111.67, 53,973.80 and 21,206.62

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Solution

The fourth proportional to 39,111.67, 53,973.80 and 21,206.62 is: 29,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.67 : 53,973.80 = 21,206.62 : x
  2. Step 2: Convert to fraction form
    39,111.67/53,973.80 = 21,206.62/x
  3. Step 3: Cross multiply
    39,111.67x = 53,973.80 × 21,206.62
  4. Step 4: Simplify right side
    39,111.67x = 1,144,601,866.56
  5. Step 5: Solve for x
    x = 1,144,601,866.56/39,111.67
  6. Step 6: Final answer
    x = 29,264.97

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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.