Home / 39,111.44-53,973.29-21,206.39

Finding the Fourth Proportional to 39,111.44, 53,973.29 and 21,206.39

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Solution

The fourth proportional to 39,111.44, 53,973.29 and 21,206.39 is: 29,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.44 : 53,973.29 = 21,206.39 : x
  2. Step 2: Convert to fraction form
    39,111.44/53,973.29 = 21,206.39/x
  3. Step 3: Cross multiply
    39,111.44x = 53,973.29 × 21,206.39
  4. Step 4: Simplify right side
    39,111.44x = 1,144,578,531.29
  5. Step 5: Solve for x
    x = 1,144,578,531.29/39,111.44
  6. Step 6: Final answer
    x = 29,264.55

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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.