Home / 20,329.34-28,054.38-11,377.22

Finding the Fourth Proportional to 20,329.34, 28,054.38 and 11,377.22

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Solution

The fourth proportional to 20,329.34, 28,054.38 and 11,377.22 is: 15,700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.34 : 28,054.38 = 11,377.22 : x
  2. Step 2: Convert to fraction form
    20,329.34/28,054.38 = 11,377.22/x
  3. Step 3: Cross multiply
    20,329.34x = 28,054.38 × 11,377.22
  4. Step 4: Simplify right side
    20,329.34x = 319,180,853.22
  5. Step 5: Solve for x
    x = 319,180,853.22/20,329.34
  6. Step 6: Final answer
    x = 15,700.50

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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.