Home / 30,349.67-41,867.65-20,280.58

Finding the Fourth Proportional to 30,349.67, 41,867.65 and 20,280.58

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Solution

The fourth proportional to 30,349.67, 41,867.65 and 20,280.58 is: 27,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,349.67 : 41,867.65 = 20,280.58 : x
  2. Step 2: Convert to fraction form
    30,349.67/41,867.65 = 20,280.58/x
  3. Step 3: Cross multiply
    30,349.67x = 41,867.65 × 20,280.58
  4. Step 4: Simplify right side
    30,349.67x = 849,100,145.92
  5. Step 5: Solve for x
    x = 849,100,145.92/30,349.67
  6. Step 6: Final answer
    x = 27,977.25

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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.