Home / 30,565.69-45,852.80-13,929.91

Finding the Fourth Proportional to 30,565.69, 45,852.80 and 13,929.91

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Solution

The fourth proportional to 30,565.69, 45,852.80 and 13,929.91 is: 20,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,565.69 : 45,852.80 = 13,929.91 : x
  2. Step 2: Convert to fraction form
    30,565.69/45,852.80 = 13,929.91/x
  3. Step 3: Cross multiply
    30,565.69x = 45,852.80 × 13,929.91
  4. Step 4: Simplify right side
    30,565.69x = 638,725,377.25
  5. Step 5: Solve for x
    x = 638,725,377.25/30,565.69
  6. Step 6: Final answer
    x = 20,896.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.