Home / 39,111.38-53,973.19-21,206.00

Finding the Fourth Proportional to 39,111.38, 53,973.19 and 21,206.00

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Solution

The fourth proportional to 39,111.38, 53,973.19 and 21,206.00 is: 29,264.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.38 : 53,973.19 = 21,206.00 : x
  2. Step 2: Convert to fraction form
    39,111.38/53,973.19 = 21,206.00/x
  3. Step 3: Cross multiply
    39,111.38x = 53,973.19 × 21,206.00
  4. Step 4: Simplify right side
    39,111.38x = 1,144,555,509.30
  5. Step 5: Solve for x
    x = 1,144,555,509.30/39,111.38
  6. Step 6: Final answer
    x = 29,264.00

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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.