Home / 20,328.24-28,052.94-11,377.47

Finding the Fourth Proportional to 20,328.24, 28,052.94 and 11,377.47

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Solution

The fourth proportional to 20,328.24, 28,052.94 and 11,377.47 is: 15,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.24 : 28,052.94 = 11,377.47 : x
  2. Step 2: Convert to fraction form
    20,328.24/28,052.94 = 11,377.47/x
  3. Step 3: Cross multiply
    20,328.24x = 28,052.94 × 11,377.47
  4. Step 4: Simplify right side
    20,328.24x = 319,171,483.26
  5. Step 5: Solve for x
    x = 319,171,483.26/20,328.24
  6. Step 6: Final answer
    x = 15,700.89

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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.