Home / 38,448.69-53,059.19-21,681.69

Finding the Fourth Proportional to 38,448.69, 53,059.19 and 21,681.69

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Solution

The fourth proportional to 38,448.69, 53,059.19 and 21,681.69 is: 29,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,448.69 : 53,059.19 = 21,681.69 : x
  2. Step 2: Convert to fraction form
    38,448.69/53,059.19 = 21,681.69/x
  3. Step 3: Cross multiply
    38,448.69x = 53,059.19 × 21,681.69
  4. Step 4: Simplify right side
    38,448.69x = 1,150,412,909.23
  5. Step 5: Solve for x
    x = 1,150,412,909.23/38,448.69
  6. Step 6: Final answer
    x = 29,920.73

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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.