Home / 39,065.09-53,909.96-21,160.04

Finding the Fourth Proportional to 39,065.09, 53,909.96 and 21,160.04

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Solution

The fourth proportional to 39,065.09, 53,909.96 and 21,160.04 is: 29,200.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,065.09 : 53,909.96 = 21,160.04 : x
  2. Step 2: Convert to fraction form
    39,065.09/53,909.96 = 21,160.04/x
  3. Step 3: Cross multiply
    39,065.09x = 53,909.96 × 21,160.04
  4. Step 4: Simplify right side
    39,065.09x = 1,140,736,534.65
  5. Step 5: Solve for x
    x = 1,140,736,534.65/39,065.09
  6. Step 6: Final answer
    x = 29,200.92

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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.