Home / 28,030.53-38,684.87-20,944.65

Finding the Fourth Proportional to 28,030.53, 38,684.87 and 20,944.65

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Solution

The fourth proportional to 28,030.53, 38,684.87 and 20,944.65 is: 28,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.53 : 38,684.87 = 20,944.65 : x
  2. Step 2: Convert to fraction form
    28,030.53/38,684.87 = 20,944.65/x
  3. Step 3: Cross multiply
    28,030.53x = 38,684.87 × 20,944.65
  4. Step 4: Simplify right side
    28,030.53x = 810,240,957.72
  5. Step 5: Solve for x
    x = 810,240,957.72/28,030.53
  6. Step 6: Final answer
    x = 28,905.66

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Half scale
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Double scale
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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.