Home / 39,049.70-53,888.63-21,144.71

Finding the Fourth Proportional to 39,049.70, 53,888.63 and 21,144.71

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Solution

The fourth proportional to 39,049.70, 53,888.63 and 21,144.71 is: 29,179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,049.70 : 53,888.63 = 21,144.71 : x
  2. Step 2: Convert to fraction form
    39,049.70/53,888.63 = 21,144.71/x
  3. Step 3: Cross multiply
    39,049.70x = 53,888.63 × 21,144.71
  4. Step 4: Simplify right side
    39,049.70x = 1,139,459,482.65
  5. Step 5: Solve for x
    x = 1,139,459,482.65/39,049.70
  6. Step 6: Final answer
    x = 29,179.73

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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.