Home / 18,971.13-28,455.67-5,823.50

Finding the Fourth Proportional to 18,971.13, 28,455.67 and 5,823.50

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Solution

The fourth proportional to 18,971.13, 28,455.67 and 5,823.50 is: 8,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.13 : 28,455.67 = 5,823.50 : x
  2. Step 2: Convert to fraction form
    18,971.13/28,455.67 = 5,823.50/x
  3. Step 3: Cross multiply
    18,971.13x = 28,455.67 × 5,823.50
  4. Step 4: Simplify right side
    18,971.13x = 165,711,650.83
  5. Step 5: Solve for x
    x = 165,711,650.83/18,971.13
  6. Step 6: Final answer
    x = 8,734.94

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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.