Home / 39,293.74-54,225.68-21,388.69

Finding the Fourth Proportional to 39,293.74, 54,225.68 and 21,388.69

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Solution

The fourth proportional to 39,293.74, 54,225.68 and 21,388.69 is: 29,516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.74 : 54,225.68 = 21,388.69 : x
  2. Step 2: Convert to fraction form
    39,293.74/54,225.68 = 21,388.69/x
  3. Step 3: Cross multiply
    39,293.74x = 54,225.68 × 21,388.69
  4. Step 4: Simplify right side
    39,293.74x = 1,159,816,259.56
  5. Step 5: Solve for x
    x = 1,159,816,259.56/39,293.74
  6. Step 6: Final answer
    x = 29,516.57

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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.