Home / 15,890.20-23,786.70-14,140.60

Finding the Fourth Proportional to 15,890.20, 23,786.70 and 14,140.60

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Solution

The fourth proportional to 15,890.20, 23,786.70 and 14,140.60 is: 21,167.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.20 : 23,786.70 = 14,140.60 : x
  2. Step 2: Convert to fraction form
    15,890.20/23,786.70 = 14,140.60/x
  3. Step 3: Cross multiply
    15,890.20x = 23,786.70 × 14,140.60
  4. Step 4: Simplify right side
    15,890.20x = 336,358,210.02
  5. Step 5: Solve for x
    x = 336,358,210.02/15,890.20
  6. Step 6: Final answer
    x = 21,167.65

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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.