Home / 15,385.70-23,078.73-4,291.71

Finding the Fourth Proportional to 15,385.70, 23,078.73 and 4,291.71

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Solution

The fourth proportional to 15,385.70, 23,078.73 and 4,291.71 is: 6,437.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.70 : 23,078.73 = 4,291.71 : x
  2. Step 2: Convert to fraction form
    15,385.70/23,078.73 = 4,291.71/x
  3. Step 3: Cross multiply
    15,385.70x = 23,078.73 × 4,291.71
  4. Step 4: Simplify right side
    15,385.70x = 99,047,194.87
  5. Step 5: Solve for x
    x = 99,047,194.87/15,385.70
  6. Step 6: Final answer
    x = 6,437.62

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1.5x scale

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.