Home / 32,971.61-45,516.54-18,821.72

Finding the Fourth Proportional to 32,971.61, 45,516.54 and 18,821.72

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Solution

The fourth proportional to 32,971.61, 45,516.54 and 18,821.72 is: 25,982.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,971.61 : 45,516.54 = 18,821.72 : x
  2. Step 2: Convert to fraction form
    32,971.61/45,516.54 = 18,821.72/x
  3. Step 3: Cross multiply
    32,971.61x = 45,516.54 × 18,821.72
  4. Step 4: Simplify right side
    32,971.61x = 856,699,571.25
  5. Step 5: Solve for x
    x = 856,699,571.25/32,971.61
  6. Step 6: Final answer
    x = 25,982.95

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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.