Home / 39,111.08-53,973.54-21,206.36

Finding the Fourth Proportional to 39,111.08, 53,973.54 and 21,206.36

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Solution

The fourth proportional to 39,111.08, 53,973.54 and 21,206.36 is: 29,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.08 : 53,973.54 = 21,206.36 : x
  2. Step 2: Convert to fraction form
    39,111.08/53,973.54 = 21,206.36/x
  3. Step 3: Cross multiply
    39,111.08x = 53,973.54 × 21,206.36
  4. Step 4: Simplify right side
    39,111.08x = 1,144,582,049.85
  5. Step 5: Solve for x
    x = 1,144,582,049.85/39,111.08
  6. Step 6: Final answer
    x = 29,264.91

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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.